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For more information about this slide, visit CSlide - history.medsci.ox.ac.uk/cslide/flickr/set/72157638404476816
This is a grain of wadsleyite, a high pressure polymorph of olivine. It is the same composition as the blue ringwoodite.
C'est un lézard de forme élancée, espèce extrêmement polymorphe, avec une variabilité extraordinaire de l'écaillure, une coloration très variable, brun, gris ou même verdâtre. La face ventrale est claire, jaune, bleu ou rougeâtre. La gorge est mouchetée de noir. Le mâle mesure 20 cm, exceptionnellement 25 cm, la femelle 18 cm. On ne peut pas déterminer son sexe tant qu'il n'a pas atteint la maturité. La queue de ce lézard casse facilement (autotomie), lui permettant ainsi d'échapper à des prédateurs. En effet, l'extrémité « perdue » continue à s'agiter ce qui constitue un leurre vis-à-vis de l'attaquant. Une queue de remplacement repousse progressivement mais elle est dépourvue d'écailles, et elle est uniformément gris sombre. Parfois elle peut repousser double. On peut observer ce lézard toute l'année dans le sud de la France.
- Papilio memnon agenor female form alcanor (Great Mormon / Le Grand mormon) -
Cet énorme papillon ne se pose quasiment jamais une fois le soleil levé. Casse-tête absolu pour le photographe mais, celui là a du avoir soit un coup de fatigue soit une once de pitié puisqu'il s'est posé une fraction de seconde, il fallait déclencher au bon moment !
Cette espèce est hautement polymorphique, notamment les femelles qui imitent d'autres espèces non comestibles (évitant ainsi de se faire croquer). Ces papillons ont été largement étudiés comme exemples du Mimétisme batésien.
Mekong's delta, Cần Thơ
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Once laid the Turtle Eggs are moved to a secure enclosure for hatching. Volunteers monitor the beaches for turtles laying then retrieve the eggs and place them in a caged off enclosure a few meters away. They also record the details of the turtles.
The loggerhead sea turtle (Caretta caretta) is a species of oceanic turtle distributed throughout the world. It is a marine reptile, belonging to the family Cheloniidae. The average loggerhead measures around 90 cm (35 in) in carapace length when fully grown. The adult loggerhead sea turtle weighs approximately 135 kg (298 lb), with the largest specimens weighing in at more than 450 kg (1,000 lb). The skin ranges from yellow to brown in color, and the shell is typically reddish brown. No external differences in sex are seen until the turtle becomes an adult, the most obvious difference being the adult males have thicker tails and shorter plastrons (lower shells) than the females.
The loggerhead sea turtle is found in the Atlantic, Pacific, and Indian Oceans, as well as the Mediterranean Sea. It spends most of its life in saltwater and estuarine habitats, with females briefly coming ashore to lay eggs. The loggerhead sea turtle has a low reproductive rate; females lay an average of four egg clutches and then become quiescent, producing no eggs for two to three years. The loggerhead reaches sexual maturity within 17–33 years and has a lifespan of 47–67 years.
The loggerhead sea turtle is omnivorous, feeding mainly on bottom-dwelling invertebrates. Its large and powerful jaws serve as an effective tool for dismantling its prey. Young loggerheads are exploited by numerous predators; the eggs are especially vulnerable to terrestrial organisms. Once the turtles reach adulthood, their formidable size limits predation to large marine animals, such as large sharks.
The loggerhead sea turtle has a cosmopolitan distribution, nesting over the broadest geographical range of any sea turtle. It inhabits the Atlantic, Indian, and Pacific Oceans and the Mediterranean Sea.
In the Atlantic Ocean, the greatest concentration of loggerheads is along the southeastern coast of North America and in the Gulf of Mexico. Very few loggerheads are found along the European and African coastlines. Florida is the most popular nesting site, with more than 67,000 nests built per year. Nesting extends as far north as Virginia, as far south as Brazil, and as far east as the Cape Verde Islands. The Cape Verde Islands are the only significant nesting site on the eastern side of the Atlantic. Loggerheads found in the Atlantic Ocean feed from Canada to Brazil.
In the Indian Ocean, loggerheads feed along the coastlines of Africa, the Arabian Peninsula, and in the Arabian Sea. Along the African coastline, loggerheads nest from Mozambique's Bazaruto Archipelago to South Africa's St Lucia estuary. The largest Indian Ocean nesting site is Oman, on the Arabian Peninsula, which hosts around 15,000 nests, giving it the second largest nesting population of loggerheads in the world. Western Australia is another notable nesting area, with 1,000–2,000 nests per year.
Pacific loggerheads live in temperate to tropical regions. They forage in the East China Sea, the southwestern Pacific, and along the Baja California Peninsula. Eastern Australia and Japan are the major nesting areas, with the Great Barrier Reef deemed an important nesting area. Pacific loggerheads occasionally nest in Vanuatu and Tokelau. Yakushima Island is the most important site, with three nesting grounds visited by 40% of all nearby loggerheads. After nesting, females often find homes in the East China Sea, while the Kuroshio Current Extension's Bifurcation region provides important juvenile foraging areas. Eastern Pacific populations are concentrated off the coast of Baja California, where upwelling provides rich feeding grounds for juvenile turtles and subadults. Nesting sites along the eastern Pacific Basin are rare. mtDNA sequence polymorphism analysis and tracking studies suggest 95% of the population along the coast of the Americas hatch on the Japanese Islands in the western Pacific. The turtles are transported by the prevailing currents across the full length of the northern Pacific, one of the longest migration routes of any marine animal. The return journey to the natal beaches in Japan has been long suspected, although the trip would cross unproductive clear water with few feeding opportunities. Evidence of a return journey came from an adult female loggerhead named Adelita, which in 1996, equipped with a satellite tracking device, made the 14,500 km (9,000 mi) trip from Mexico across the Pacific. Adelita was the first animal of any kind ever tracked across an ocean basin.
The Mediterranean Sea is a nursery for juveniles, as well as a common place for adults in the spring and summer months. Almost 45% of the Mediterranean juvenile population has migrated from the Atlantic. Loggerheads feed in the Alboran Sea and the Adriatic Sea, with tens of thousands of specimens (mainly sub-adult) seasonally present in the North-Eastern portion of the latter, above all in the area of the Po Delta. Greece is the most popular nesting site along the Mediterranean, with more than 3,000 nests per year. Zakynthos hosts the largest Mediterranean nesting with the second one being in Kyparissia Bay. Because of this, Greek authorities do not allow planes to take off or land at night in Zakynthos due to the nesting turtles. In addition to the Greek coast, the coastlines of Cyprus and Turkey are also common nesting sites.
*Wikipedia
Pissenlit, ou dent-de-lion, est un nom vernaculaire ambigu en français. On appelle « pissenlit » diverses plantes à tige généralement creuse et dont l'inflorescence est un capitule plat et jaune. Ce capitule est généralement à fleurons ligulés. C'est la couleur jaune du capitule et sa forme plate qui déterminent généralement l'emploi du nom « pissenlit » pour désigner telle ou telle espèce.
Les pissenlits « véritables » sont des espèces du genre Taraxacum. Des espèces d'autres genres de la famille des Asteraceae peuvent prendre néanmoins ce nom vernaculaire. Il s'agit ainsi d'une espèce collective qui comprend de nombreuses sous-espèces ou espèces distinctes suivant les auteurs qui leur donnent des valeurs taxonomiques inégales en raison du grand polymorphisme des plantes. 250 à 300 sous-espèces (ou espèces distinctes) ont été décrites en France, 1 200 en Europe et près de 2 000 dans le monde.
Extrait de Wikipédia.
Familia Liliaceae / Liliáceas
Gagea lacaitae
= Gagea polymorpha / = G. granatelli
rio seco liliacea DSC_5626
Hábitat:
En los pastizales de sierra nevada en los borreguiles de Sierra Nevada en los pisos bioclimáticos oro y crioromediterráneo, por encima de 2.400 metros de altitud.
This is a photomicrograph of a thin section of an experimental sample I made at a pressure equivalent to a depth of 410km. The brightly colored phase is olivine and the gray-green mineral is wadsleyite, the first high pressure polymorph of olivine. The view is about 0.2 mm across and shows a texture of olivine with wadsleyite lamellae.
''La musique que proposent Tim et Meriadeg est une embarcation vers l’inconnu, le polymorphe et la rêverie. L’issue du périple est aussi incertaine que virtuose, la mécanique des sens est réglée sur intense, les questions fusent et se défont au gré de mille réponses qui coulent de source. On est en mer, sur le dos d’une vague en transhumance ou à terre au milieu des herbes hautes, qu’importe !!!… on est bien.''
Pas besoin de balances pour ce ''tandem acoustique résolu à dénicher et composer des mélodies simples, jolies ; puis jouer, s'en amuser.'' Fort de l'attachement de ces deux musiciens ''aux musiques traditionnelles, vivantes, étonnantes et voyageuses'' il a juste fallu qu'Estelle entame les deux chants qu'elle souhaitait proposer à son public en leur compagnie pour qu'une demi-heure plus tard tout soit en place ...
This look is for all of the iconic Vampire Horror Movies so I did a Sexy Vampire.
Products Used:
Polymorph Plastic for the teeth
General beauty makeup
Contacts are photoshopped
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Once laid the Turtle Eggs are moved to a secure enclosure for hatching. Volunteers monitor the beaches for turtles laying then retrieve the eggs and place them in a caged off enclosure a few meters away. They also record the details of the turtles.
The loggerhead sea turtle (Caretta caretta) is a species of oceanic turtle distributed throughout the world. It is a marine reptile, belonging to the family Cheloniidae. The average loggerhead measures around 90 cm (35 in) in carapace length when fully grown. The adult loggerhead sea turtle weighs approximately 135 kg (298 lb), with the largest specimens weighing in at more than 450 kg (1,000 lb). The skin ranges from yellow to brown in color, and the shell is typically reddish brown. No external differences in sex are seen until the turtle becomes an adult, the most obvious difference being the adult males have thicker tails and shorter plastrons (lower shells) than the females.
The loggerhead sea turtle is found in the Atlantic, Pacific, and Indian Oceans, as well as the Mediterranean Sea. It spends most of its life in saltwater and estuarine habitats, with females briefly coming ashore to lay eggs. The loggerhead sea turtle has a low reproductive rate; females lay an average of four egg clutches and then become quiescent, producing no eggs for two to three years. The loggerhead reaches sexual maturity within 17–33 years and has a lifespan of 47–67 years.
The loggerhead sea turtle is omnivorous, feeding mainly on bottom-dwelling invertebrates. Its large and powerful jaws serve as an effective tool for dismantling its prey. Young loggerheads are exploited by numerous predators; the eggs are especially vulnerable to terrestrial organisms. Once the turtles reach adulthood, their formidable size limits predation to large marine animals, such as large sharks.
The loggerhead sea turtle has a cosmopolitan distribution, nesting over the broadest geographical range of any sea turtle. It inhabits the Atlantic, Indian, and Pacific Oceans and the Mediterranean Sea.
In the Atlantic Ocean, the greatest concentration of loggerheads is along the southeastern coast of North America and in the Gulf of Mexico. Very few loggerheads are found along the European and African coastlines. Florida is the most popular nesting site, with more than 67,000 nests built per year. Nesting extends as far north as Virginia, as far south as Brazil, and as far east as the Cape Verde Islands. The Cape Verde Islands are the only significant nesting site on the eastern side of the Atlantic. Loggerheads found in the Atlantic Ocean feed from Canada to Brazil.
In the Indian Ocean, loggerheads feed along the coastlines of Africa, the Arabian Peninsula, and in the Arabian Sea. Along the African coastline, loggerheads nest from Mozambique's Bazaruto Archipelago to South Africa's St Lucia estuary. The largest Indian Ocean nesting site is Oman, on the Arabian Peninsula, which hosts around 15,000 nests, giving it the second largest nesting population of loggerheads in the world. Western Australia is another notable nesting area, with 1,000–2,000 nests per year.
Pacific loggerheads live in temperate to tropical regions. They forage in the East China Sea, the southwestern Pacific, and along the Baja California Peninsula. Eastern Australia and Japan are the major nesting areas, with the Great Barrier Reef deemed an important nesting area. Pacific loggerheads occasionally nest in Vanuatu and Tokelau. Yakushima Island is the most important site, with three nesting grounds visited by 40% of all nearby loggerheads. After nesting, females often find homes in the East China Sea, while the Kuroshio Current Extension's Bifurcation region provides important juvenile foraging areas. Eastern Pacific populations are concentrated off the coast of Baja California, where upwelling provides rich feeding grounds for juvenile turtles and subadults. Nesting sites along the eastern Pacific Basin are rare. mtDNA sequence polymorphism analysis and tracking studies suggest 95% of the population along the coast of the Americas hatch on the Japanese Islands in the western Pacific. The turtles are transported by the prevailing currents across the full length of the northern Pacific, one of the longest migration routes of any marine animal. The return journey to the natal beaches in Japan has been long suspected, although the trip would cross unproductive clear water with few feeding opportunities. Evidence of a return journey came from an adult female loggerhead named Adelita, which in 1996, equipped with a satellite tracking device, made the 14,500 km (9,000 mi) trip from Mexico across the Pacific. Adelita was the first animal of any kind ever tracked across an ocean basin.
The Mediterranean Sea is a nursery for juveniles, as well as a common place for adults in the spring and summer months. Almost 45% of the Mediterranean juvenile population has migrated from the Atlantic. Loggerheads feed in the Alboran Sea and the Adriatic Sea, with tens of thousands of specimens (mainly sub-adult) seasonally present in the North-Eastern portion of the latter, above all in the area of the Po Delta. Greece is the most popular nesting site along the Mediterranean, with more than 3,000 nests per year. Zakynthos hosts the largest Mediterranean nesting with the second one being in Kyparissia Bay. Because of this, Greek authorities do not allow planes to take off or land at night in Zakynthos due to the nesting turtles. In addition to the Greek coast, the coastlines of Cyprus and Turkey are also common nesting sites.
*Wikipedia
Butterfly, Lepidoptera, agents of pollination and change, often exhibiting polymorphism and mimicry, grow from eggs to caterpillar and then to larva, pupa and butterfly.
''La musique que proposent Tim et Meriadeg est une embarcation vers l’inconnu, le polymorphe et la rêverie. L’issue du périple est aussi incertaine que virtuose, la mécanique des sens est réglée sur intense, les questions fusent et se défont au gré de mille réponses qui coulent de source. On est en mer, sur le dos d’une vague en transhumance ou à terre au milieu des herbes hautes, qu’importe !!!… on est bien.''
Pas besoin de balances pour ce ''tandem acoustique résolu à dénicher et composer des mélodies simples, jolies ; puis jouer, s'en amuser.'' Fort de l'attachement de ces deux musiciens ''aux musiques traditionnelles, vivantes, étonnantes et voyageuses'' il a juste fallu qu'Estelle entame les deux chants qu'elle souhaitait proposer à son public en leur compagnie pour qu'une demi-heure plus tard tout soit en place ...
Bombus bifarius
Gore Nature Park, Central Saanich, BC
A Two-form Bumble Bee forages busily on Hooker's Onion (Allium acuminatum) flowers. "Two-form" refers to the two distinct color polymorphisms of the species; some say they should really be separated into two species. This was a restless bee, flitting from flower to flower, never still for more than a few seconds.