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Esta especie de lagarto vive en regiones de climas tropicales, templados a temperaturas de entre 27 y 40 °C, y un ambiente de humedad superior al 70%. Para su supervivencia dependen de la vegetación que rodea estas áreas de selvas abundantes con pastizales, manglares, arbustos, riberas de ríos, acahuales, lagunas, y tierra desértica.
La iguana es arborícola, gracias a sus fuertes garras puede trepar árboles hasta las ramas más altas, siendo su lugar predilecto para descansar y recargar energía con los rayos del sol.
Características físicasEditar
Las dos especies de lagarto del género Iguana poseen una papada, un par de espinas que corren por la espalda hasta la cola y un tercer ojo en la cabeza. Este último es conocido como ojo parietal, el cual parece una escama pálida en la cabeza. Detrás del cuello hay unas escamas que asemejan a picos, nombrados escamas tuberculares.Son acuáticas y viven en el agua
La iguana verde (Iguana iguana) tiene 1,50 m de longitud. En el cuello y dorso tiene una alta cresta, formada por espinas independientes; otra serie de espinas similar aparece bajo el mentón. Posee cuerpo y cola alargados y estrechos; con esta última puede dar poderosos golpes, aunque es un animal inofensivo.
Las iguanas son animales herbívoros y ovíparos. Ponen sus huevos bajo tierra durante el mes de febrero. Llegan a la madurez sexual a los 16 meses de edad, pero son consideradas adultas a los 36 meses, cuando miden 70 cm de largo.
This species of lizard lives in regions with tropical climates, temperate at temperatures between 27 and 40 ° C, and an environment with humidity above 70%. For their survival they depend on the vegetation that surrounds these areas of abundant forests with grasslands, mangroves, shrubs, riverbanks, acahuales, lagoons, and desert land.
The iguana is arboreal, thanks to its strong claws it can climb trees up to the highest branches, being its favorite place to rest and recharge with the sun's rays.
Physical characteristicsEdit
The two species of lizard in the genus Iguana have a dewlap, a pair of spines that run down the back to the tail, and a third eye on the head. The latter is known as the parietal eye, which looks like a pale scale on the head. Behind the neck are scales that resemble beaks, called tubercular scales, they are aquatic and live in water.
The green iguana (Iguana iguana) is 1.50 m long. On the neck and back it has a high crest, formed by independent spines; another series of similar spines appears under the chin. It has an elongated and narrow body and tail; with the latter it can deliver powerful blows, although it is a harmless animal.
Iguanas are herbivorous and oviparous animals. They lay their eggs underground during the month of February. They reach sexual maturity at 16 months of age, but are considered adults at 36 months, when they are 70 cm long.
The Brolga is one of Australia’s largest flying birds measuring from anywhere between 1 to 1.3 m in height. Their wing span ranges from 1.7 to 2.4 m and males tend to be bigger than females.
The Brolga is a pale grey colour with an obvious red to orange patch on their head with a black dewlap (piece of skin) hanging underneath their chin. The Brolga is the only crane species to have a gland in the corner of their eyes, which helps to pass excess salt.
The brolga has featured on the Queensland coat of arms since 1977, and was formally declared as the bird emblem of the state in 1986.
Tall pale gray crane with grayish legs and red bare skin on head that does not extend down the neck. Note red dewlap under chin. Juvenile is gray-headed, with immature birds developing a pink crown. Occurs in wetlands, floodplains, and grasslands across northern and eastern Australia. Take care to identify from Sarus Crane. (eBird)
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Wonderful to see this lovely crane feeding in the fields around the Yellow Water. It shared its grazing grounds with egrets, herons and storks (and possibly the occasional saltwater crocodile).
Kakadu National Park, Northern Territory, Australia. October 2022.
Eagle-Eye Tours - Tropical Australia.
Yellow Water Cruises.
Gumbo is a rescue turtle. In 2014 he was run over by a car that crushed his shell and ruptured his eyes. I took him to the Turtle Rescue Team at NC State. An amazing vet put him back together but couldn’t save his eyes. I adopted him but was told the odds were slim, because blind turtles lose the will to live, and refuse to eat. It took several months of love and coaxing, but he now eats ravenously from my hand.
He responds to numerous words, including his name. When I approach his tank and say, “I love you,” his head rises all the way up and the dewlap under his neck starts pounding.
Gumbo strolls in my garden every week and has learned to use his other senses to navigate. He loves to play in the hose. It helps orientate his location and the coils are simply fun.
A male anole displaying his dewlap which is backlit by the Florida Sun. He displays his dewlap to impress all of the female lizards in the area. He is about 5 inches in length from head to tip of tail. HMM everyone!
A long, slender, brown lizard, males reach 20 cm (8 in) long, females are smaller. Males have yellowish spots on the back, a ridge down the center of its back, and an orange to pale-yellow, white-edged dewlap or throat flap.
Brown anoles were introduced to Florida from Cuban and the Bahamas and are now found throughout the state. They thrive in disturbed habitats, among ornamental plants and are common around buildings. Where brown anoles coexist with the native green anoles, you will usually see the brown anoles on the ground and the green anoles on the upper trunk and in the canopy of trees.
I found this one in my backyard. Polk County, Florida.
Important to know: Iguanas are capable of severely injuring people, other animals and themselves when their body language alerts are not recognized.
Most iguanas clearly signal that trouble is ahead. They nod their head and wave their dewlap side to side. The dewlap is a fold of loose skin that hangs from the neck or throat. First, an extended dewlap is used to say hello to another creature during mating. Second, a threatened iguana may extend its dewlap to intimidate a predator into thinking it is much larger than it is. Third, an extended dewlap may mean the Iguana is trying to adjust its temperature, to catch more sun to warm up or a breeze to cool off.
Parts of an iguana... www.bing.com/images/search?view=detailV2&ccid=Up3IVbC...
Fairchild Tropical Botanic Garden, Miami FL
The brown anole, also known as the Bahaman anole or De la Sagra's Anole, is a lizard native to Cuba and the Bahamas. It has been widely introduced elsewhere, by being sold as a pet lizard, and is now found in Florida and as far north in the United States as southern Georgia, Texas, Louisiana, Mississippi, Alabama, Hawaii, and Southern California. It has also been introduced to other Caribbean islands and Taiwan in Asia.
Scientific name: Anolis sagrei
Phylum: Chordate
Class: Reptile
Order: Squamata
Family: Dactyloidae
Genus: Anolis
© All rights reserved
Closeup focusing on the amazing #texture #adipose #pad #horn or #tubercles and #dewlap of a rhino iguana.
Moose are the largest living member of the deer family (Cervidae).
Moose stand 6–7 feet at the shoulder and weigh up to 600 Kg. They’re the largest member of the deer family. Both males and females have a shoulder hump and a loose fold of skin hanging from their throats, called a dewlap or bell.
Taken in Alberta, Canada
-Alces alces
Cuiaba River
The Pantanal
Brazil
South America
The green iguana (Iguana iguana), also known as the American iguana, is a large, arboreal, mostly herbivorous species of lizard of the genus Iguana. It is native to Central, South America, and the Caribbean. The green iguana ranges over a large geographic area, from southern Brazil and Paraguay as far north as Mexico and the Caribbean islands.
They have been introduced from South America to Puerto Rico and are very common throughout the island, where they are colloquially known as gallina de palo and considered an invasive species; in the United States feral populations also exist in South Florida (including the Florida Keys), Hawaii, the U.S. Virgin Islands and the Rio Grande Valley of Texas.
A herbivore, it has adapted significantly with regard to locomotion and osmoregulation as a result of its diet. It grows to 1.5 meters (4.9 ft) in length from head to tail, although a few specimens have grown more than 2 metres (6.6 ft) with bodyweights upward of 20 pounds (9.1 kg).
Green iguanas use "head bobs" and dewlaps in a variety of ways in social interactions, such as greeting another iguana or to court a possible mate. The frequency and number of head bobs have particular meanings to other iguanas. Green iguanas are hunted by predatory birds.
Green Iguanas are primarily herbivores, with the reptiles feeding on growing shoots of upwards of 100 different species of plant. In Panama one of the green iguana's favorite foods is wild plum, Spondias mombin. - Wikipedia
A prominent hanging dewlap under the throat, a dorsal crest of robust dermal spines running from neck to tail, a set of large scales on each side of the head, a membrane-covered tympanum, and a long, tapering, variably ringed tail are distinguishing features of the species
The Dewlap also know as the bell is the flap of skin that hangs under the Moose's Chin.
Taken near Banff National Park, Alberta Canada
-Alces alces
Fabulous fatty helmet (adipose pad) and goitre (dewlap) of the rhinoceros iguana which gets its name for the bony horns (tubercles) on their snout.
Green Anole (Anolis carolinensis) in the Fort Worth Botanical Garden. He showed his pink dewlap to us but was too quick in retreating it before I could take a good picture.
The dewlap is a flap of skin found beneath the jaw or throat of Anolis lizards. It can present in a variety of colorations, and is most present in male anoles. The dewlap is extended by means of the hyoid muscles in the throat, and can be flashed in a “pulse” pattern where the flap is extended repeatedly, or a “moving flag” pattern, where the lizard flashes it continuously while bobbing up and down. The function of the dewlap in Anolis lizards has been a topic of debate for centuries. It is thought that the dewlap is flashed as a visual signal for other competing males, or as a courtship signal for single females. (Wikipedia)
The green anole is a common lizard, slender in build, with a narrow head and a long, slender tail that can be twice as long as the rest of the animal. Color can vary from gray-brown, to brown, to bright green. Each animal can change its color to blend with surroundings. Males can have a noticeable dewlap that is pink when displayed. It is commonly referred to as a "chameleon" due to its ability to change color, but not a true chameleon. (tpwd.texas.gov/huntwild/wild/species/anole/)
Important to know: Iguanas are capable of severely injuring people, other animals and themselves when their body language alerts are not recognized.
Most iguanas clearly signal that trouble is ahead. They nod their head and wave their dewlap side to side. The dewlap is a fold of loose skin that hangs from the neck or throat. First, an extended dewlap is used to say hello to another creature during mating. Second, a threatened iguana may extend its dewlap to intimidate a predator into thinking it is much larger than it is. Third, an extended dewlap may mean the Iguana is trying to adjust its temperature, to catch more sun to warm up or a breeze to cool off.
Parts of an iguana... www.bing.com/images/search?view=detailV2&ccid=Up3IVbC...
Fairchild Tropical Botanic Garden, Miami FL
This one let me get closer!
Important to know: Iguanas are capable of severely injuring people, other animals and themselves when their body language signals are not recognized. Most iguanas clearly sign that trouble is ahead. They nod their head and wave their dewlap side to side. The dewlap is a fold of loose skin hanging from the neck or throat of an animal, such as a cow.
Iguanas use their dewlap to communicate. First, an extended dewlap can simply be a greeting, away to say hello to another creature during mating but most generally as a territorial sign. Second, it can be a form of protection. A threatened iguana may extend its dewlap to intimidate a predator into thinking it is much larger than it is. Third, an extended dewlap may be a sign that the iguana is trying to adjust its temperature. An extended dewlap on an iguana basking in the sun is quite normal. It may be catching more sun to warm up or a breeze to cool off. So it's important to see "the big picture" when reading Iguana body language.
Parts of an iguana... www.bing.com/images/search?view=detailV2&ccid=Up3IVbC...
Biscayne Park FL
Important to know: Iguanas are capable of severely injuring people, other animals and themselves when their body language signals are not recognized. Most iguanas clearly sign that trouble is ahead. They nod their head and wave their dewlap side to side. The dewlap is a fold of loose skin hanging from the neck or throat of an animal, such as a cow.
Iguanas use their dewlap to communicate. First, an extended dewlap can simply be a greeting, away to say hello to another creature during mating but most generally as a territorial sign. Second, it can be a form of protection. A threatened iguana may extend its dewlap to intimidate a predator into thinking it is much larger than it is. Third, an extended dewlap may be a sign that the iguana is trying to adjust its temperature. An extended dewlap on an iguana basking in the sun is quite normal. It may be catching more sun to warm up or a breeze to cool off. So it's important to see "the big picture" when reading Iguana body language.
Parts of an iguana... www.bing.com/images/search?view=detailV2&ccid=Up3IVbC...
Biscayne Park FL
This aquatic toad appeared on my property in the spring of 2023 and always sun bathed on the same leaves near the water’s edge. He soon became very comfortable in my presence and being photographed. The tiny toad has the circumference of a silver dollar.
I saw the toad nearly every day and would approach slowly, talking softly. The dewlap under his neck would start throbbing upon hearing my greeting (a display of joy and contentment.)
While amphibians obviously don’t understand words, if spoken to with a gentle, musical voice, some can sense intention and emotion in the tonalities. Within the same species, one encounters different personalities exhibiting varying levels of sensitivity.
The photo was taken with the camera eighteen inches from my little friend.
This guy kept me company while I was trying to get my hummer shot. He was busy running off a rival anole on the other end of arbor.
I've heard news stories for several years about the non-native invasive iguanas in Florida, but in 10 winter/spring trips I've never seen one. This year, we saw several large Green Iguanas (Iguana iguana) at Wakodahatchee Wetlands, and one large one at Laxahatchee NWR, all in southern Florida.
The one in the picture and at least four others were draped over dead branches at my eye level, sleeping in the bright sunlight. This one opened his eyes for this picture.
Invasive iguanas did not swim to Florida from Central or South America. They were carelessly released by pet owners or escaped from sellers of exotic animals. They are considered a severely destructive environmental hazard (and they can bite or scratch.)
From nose to the tip of its very long tail (tail not shown in this picture), this iguana was almost four feet long (about 1.2m).
Many thanks for your visits, faves and comments. Cheers.
Brolga
Grus rubicunda
Gruidae
One of the most obvious features of the Brolga’s behaviour is its courtship display, an elaborate dance. The dance begins with a pair of birds picking up grass, tossing it into the air and catching it again. This is followed by the birds repeatedly leaping a metre into the air with wings outstretched, followed by stretching their necks upwards, bowing to one another, bobbing their heads, walking about and calling. Sometimes the dance is done alone or in a group, with the birds lining up opposite one another.
Description: The Brolga is a large grey crane, with a featherless red head and grey crown. The legs are grey and there is a black dewlap under the chin. Females are shorter than males. The energetic dance performed by the Brolga is a spectacular sight. Displays may be given at any time of the year and by birds of any age.
Similar Species: The Sarus Crane, G. antigone, another species of crane found in Australia, can be identified by its dull pink legs and the red of its head extending down the neck.
Distribution: The Brolga is found across tropical northern Australia, southwards through north-east and east central areas, as well as central New South Wales to western Victoria.
Habitat: The Brolga inhabits large open wetlands, grassy plains, coastal mudflats and irrigated croplands and, less frequently, mangrove-studded creeks and estuaries. It is less common in arid and semi-arid regions, but will occur close to water.
Feeding: Brolgas are omnivorous (feeding on both vegetable and animal matter), but primarily feed upon tubers and some crops. Some insects, molluscs, amphibians and even mice are also taken.
Breeding: Brolgas probably mate for life, and pair bonds are strengthened during elaborate courtship displays, which involve much dancing, leaping, wing-flapping and loud trumpeting. An isolated territory is established, and is vigorously defended by both partners. The white (blotched with brown and purple) eggs are laid in a single clutch. The nest is a large mound of vegetation on a small island in a shallow waterway or swamp. Both adults incubate the eggs and care for the young birds.
(Source: www.birdlife.org.au/bird-profile/brolga)
__________________________________________
© Chris Burns 2022
All rights reserved.
This image may not be copied, reproduced, distributed, republished, downloaded, displayed, posted or transmitted in any form or by any means, including electronic, mechanical, photocopying and recording without my written consent.
A chance encounter with this beautiful but little known species that are now of significant interest amongst wildlife enthusiasts.
Fan-throated lizards are small (8-10 cms long maybe), colorful reptiles found in the dry areas - grasslands or shrublands. The Males have a fan like patch of skin on their throats which they flap like a beautiful hand fan during the dating game. The Fan is called a ‘dewlap’, and brought the lizards their name. This subspecies is not very colorful, but some of the other subspecies have incredibly colorful fans that are beautiful and an absolute wonder.
Thanks in advance for your views and feedback.
A Brown Anole with its dewlap extended. This is usually preceded by a jerky bobbing of the head. This activity is said to be a territorial or defensive behavior as well as being involved in males attracting mates. Brown Anoles are an invasive species that oringinated in Cuba and are now found throughout Florida and even into Georgia. They have displaced the native Green Anole which now survive in the higher treetops.
I just love lizards and was maybe a bit overly excited in Belize every time we saw an iguana. But this guy, I mean WOW! I like the texture and colors, his dewlap, and everything. I'm not sure what the white (maybe) shell-looking thing (not his subtympanic shield - which I just learned the name of and will never remember) is on him. Ideas?
18-december-2018: this is "Mountain Hoar Frost" or "Hard Rime" ("Calabrosa" in Italian) and it forms on mounts and mountain ranges windward slopes exposed to very humid and cold currents forcibly rise from sea, lakes, soaked valleys and plains (Stau Effect), so it's composed by Wind (generally Bora/Burja in this Area) + Freezing Fog (that are Low Orographic Clouds in Stau phenomenon).
"Valley Hoar Frost" ("Galaverna" in Italian), instead, forms in the valley bottoms and in the lowlands with CALM of wind, thermal inversion and irradiation freezing fog.
In this case, on the Dinaric Alps mountains of the Karst watershed, Bora comes very wet for the rise of the currents from drenched/soaked plains of the Sava and Ljubljanica rivers.
Bora wind is damp and continuous on the interior side of the Karst Region (watershed dewlaps Adriatic/Black Sea), while it is dry and very gusty on the coastal one (up to 183kmph in Trieste at 11-02-2012).
The Lizard Dewlap out could mean they are attracting a mate or being territory and boastfulness. Males have very large dewlaps and the females are smaller. This is a Florida Anole Lizard.
A chance encounter with this beautiful but little known species exclusive to South Asia.
Fan-throated lizards are small (8-10 cms long maybe), colorful reptiles found in the dry shrublands. The Males have a fan like patch of skin on their throats which they flap like a beautiful hand fan during the dating game. The Fan is called a ‘dewlap’, and brought the lizards their name. This subspecies is not very colorful, but some of the other subspecies have incredibly colorful fans that are beautiful and an absolute wonder.
After I processed the images, I found that the lizard's fan slightly changed colors. The blue at the chin wasn't present in the first few images nor the reddish tinge at the bottom. I guess the lizard changed colors during the shoot. Unfortunately, I didn't notice it in the field since I was in a hurry to explore another nearby place. So had to rush and get back home before the lockdown started.
Many thanks in advance for your views and feedback, much appreciated.
I had taken a lot of shots so assumed this green anole was a female - until suddenly he displayed for me 3x! I already had him in focus when the movement began fortunately.
>> male Green anole, displaying near Little River, N. Georgia - yesterday
🇫🇷 À l’état sauvage, l’espèce peut atteindre jusqu’à 2 mètres de la tête à la queue et peser 5 kilos, mais elle parvient rarement à cette corpulence lorsqu’elle est domestiquée. Sa couleur dépend de son pays d’origine, pouvant aller du vert à l’orange, en passant par des nuances bleuâtres ou encore rosées. Sa tête possède un fanon gulaire ainsi qu’une grosse écaille en dessous du tympan.Très robuste et imposant, l’Iguane Vert possède une rangée d’épines sur le dos et la queue comme moyen de défense. Ses griffes lui permettent également de repousser les prédateurs et sa peau est zébrée d’épais rayons noirs. Son espérance de vie se situe entre 8 et 10 ans.
Enfin, fait remarquable, l’Iguane Vert possède un troisième œil. Cet œil, situé au sommet de sa tête, ne voit pas à proprement parler, mais lui sert à capter les différences de luminosité.
🇬🇧 In the wild, the species can grow up to 2 metres from head to tail and weigh 5 kilograms, but it rarely reaches this size when domesticated. Its colour depends on its country of origin, ranging from green to orange, bluish to pinkish. The head has a gular dewlap and a large scale below the eardrum. The Green Iguana is very robust and imposing, with a row of spines on its back and tail for defence. Its claws are also used to repel predators and its skin is streaked with thick black rays. Its life expectancy is between 8 and 10 years.
Finally, the Green Iguana has a third eye. This eye, located at the top of its head, does not actually see, but serves to detect differences in light.
🇪🇸 En estado salvaje, la especie puede llegar a medir 2 metros de la cabeza a la cola y pesar 5 kilogramos, pero rara vez alcanza este tamaño cuando es domesticada. Su color depende de su país de origen, y va del verde al naranja, pasando por el azulado y el rosado. La cabeza tiene una papada gular y una gran escama bajo el tímpano. La iguana verde es muy robusta e imponente, con una hilera de espinas en el lomo y la cola para defenderse. Sus garras también le sirven para repeler a los depredadores y su piel está salpicada de gruesos rayos negros. Su esperanza de vida oscila entre 8 y 10 años.
Por último, la iguana verde tiene un tercer ojo. Este ojo, situado en la parte superior de la cabeza, no ve realmente, pero sirve para detectar las diferencias de luz.
🇩🇪 In der Wildnis kann die Art von Kopf bis Schwanz bis zu 2 m lang und 5 kg schwer werden, aber als Haustier erreicht sie diese Körpergröße nur selten. Ihre Farbe hängt von ihrem Herkunftsland ab und reicht von grün über orange bis hin zu bläulichen oder rosafarbenen Tönen. Der Grüne Leguan ist sehr robust und imposant und hat eine Reihe von Stacheln auf dem Rücken und am Schwanz, mit denen er sich verteidigen kann. Mit seinen Krallen kann er auch Raubtiere abwehren, und seine Haut ist mit dicken schwarzen Streifen durchzogen. Seine Lebenserwartung liegt zwischen 8 und 10 Jahren.
Bemerkenswert ist, dass der Grüne Leguan ein drittes Auge hat. Dieses Auge befindet sich oben auf dem Kopf und dient nicht dem Sehen, sondern der Wahrnehmung von Helligkeitsunterschieden.
🇮🇹
Male Carolina anoles fighting
exhibiting pronounced dorsal ridge signaling aggression, and black postocular spots behind the eyes, indicating stress.
Male anoles are strongly territorial creatures. The male will fight other males to defend his territory. On sighting another male, the anole will compress his body, extend the dewlap, inflate a dorsal ridge, bob his head and attempt to chase the rival away. If the rival male continues to approach, anoles will fight by biting and scratching each other.
Lahaina, Maui HI
The male brown anole sports a vivid orange-red dewlap.
吃完了豐盛的snack, 心滿意足的牠趴在石縫中休息, 牠的小眼注意到我還在左近追蹤著牠, 出乎我意料的, 突然牠下巴一伸一縮地出現一片橘黃色有黑色小點的拱型物....我一向不是這種小生物的fans, 況且平時也像一般女生似的最怕這種小爬蟲, 哪知今天居然照上牠了.....
I love to see these guys with their dewlaps extended.
Texture by SkeletalMess. Thank you!
Thanks to everyone for the group invites, awards, kind comments and favorites!
So very much appreciated!
This little guy was my sunning buddy while we were on the island. He didn’t seem to mind us at all. We watched him do pushups and extend his dewlap as he moved along a log in the parking area.
✈ Flight to Sunny Studio ✈ M&M Smith pose
Her point of view : www.flickr.com/photos/195952188@N02/52738119416/in/datepo...
♪ "Ballad Of Bonnie And Clyde"- Georgie Fame ♪
Bonnie and Clyde were pretty lookin' people
But I can tell you people They were the devil's children,
Bonnie and Clyde began their evil doin'
One lazy afternoon down Savannah way,
They robbed a store, and high-tailed outa that town
Got clean away in a stolen car,
And waited till the heat died down,
Bonnie and Clyde advanced their reputation
And made the graduation
Into the banking business.
"Reach for the sky" sweet-talking Clyde would holler
As Bonnie loaded dollars in the dewlap bag,
Now one brave man-he tried to take 'em alone
They left him Iyin' in a pool of blood,
And laughed about it all the way home.
Bonnie and Clyde got to be public enemy number one
Running and hiding from ev'ry American lawman's gun.
They used to laugh about dyin',
But deep inside 'em they knew
That pretty soon they'd be lyin'
Beneath the ground together
Pushing up daisies to welcome the sun
And the morning dew.
Acting upon reliable information
A fed'ral deputation laid a deadly ambush.
When Bonnie and Clyde came walking in the sunshine
A half a dozen carbines opened up on them.
Bonnie and Clyde, they lived a lot together
And finally together they died,
Important to know: Iguanas are capable of severely injuring people, other animals and themselves when their body language signals are not recognized. Most iguanas clearly sign that trouble is ahead. They nod their head and wave their dewlap side to side. The dewlap is a fold of loose skin hanging from the neck or throat of an animal, such as a cow.
Iguanas use their dewlap to communicate. First, an extended dewlap can simply be a greeting, away to say hello to another creature during mating but most generally as a territorial sign. Second, it can be a form of protection. A threatened iguana may extend its dewlap to intimidate a predator into thinking it is much larger than it is. Third, an extended dewlap may be a sign that the iguana is trying to adjust its temperature. An extended dewlap on an iguana basking in the sun is quite normal. It may be catching more sun to warm up or a breeze to cool off. So it's important to see "the big picture" when reading Iguana body language.
Parts of an iguana... www.bing.com/images/search?view=detailV2&ccid=Up3IVbC...
Fairchild Tropical Botanic Garden, Miami FL
Corkscrew Swamp Sanctuary
Southwestern Florida
USA
Green anole on the boardwalk over the swamp. Another green anole can be seen in the first comment section. The next few images will be from there.
The Carolina anole (Anolis carolinensis) is an arboreal anole lizard native to the southeastern United States (west to Texas) and introduced elsewhere. Other common names include the green anole, American green anole, American anole, and red-throated anole. It has the ability to change color from several brown hues to bright green.
The Carolina anole is a small to medium-sized lizard, with a slender body. The head is long and pointed with ridges between the eyes and nostrils, and smaller ones on the top of the head. The toes have adhesive pads to facilitate climbing. They exhibit sexual dimorphism, the males being fifteen percent larger. The male dewlap (throat fan) is three times the size of the female's and bright red while, the female's is lighter in color.
Adult males are usually 12.5–20.3 cm (4.9–8.0 in) long, with about 60-70% of which is made up of its tail, with a body length up to 7.5 cm (3.0 in) and can weigh from 3–7 g (0.11–0.25 oz).
Carolina anole males that encounter rival males frequently find it is an introduced and invasive brown anole (Anolis sagrei, also known as the Bahaman anole). When browns first appeared in the United States in the early 1900s, the Carolinas ceded their ground-level territories and were relegated to a very different ecosystem high in the treetops. Currently A. carolinensis is abundant in its area of distribution, and is able to thrive in disturbed areas, so it is not considered threatened; but the brown anole represents a developing threat in the future. - Wikipedia