class photos on Flickr

Class 68 by Blue_Wingbird

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at Stalybridge Station

Class of 2010 by 'Iolani Alumni

IMG_0402 by JJ SILVER

73205 and 73136 at Norden on the swanage diesel gala 6/05/11

31237 Bescot 23-7-98 by Brian Daniels

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20160505an_18732 by University of Wisconsin-Parkside

This class is Bios 340 (Animal Behavior). It is an elective class for the Biology major.

This lab was a simulation on the evolution of honest signaling. When animals are involved in contests with a rival, the winner is usually the one who has a better overall physical condition or is more experience in such contests. This phenomenon is known as Resource Holding Potential.

To model this in the lab, students first competed against each other with bags of cotton swabs. They didn’t know how many cotton swabs the other rival had as they competed for a territory (shoebox) of varying qualities (A, B, C –with A being the best). The game was if a territory was challenged, the rival had to in sequential order place out a cotton swab on the table with the territory holder. Each had to assess how long they wanted to stay in the game based on what they had in their bags. If one felt that s/he was going to lose (run out of cotton swabs), then they would leave the table and the other individual would “win” the territory.

In the second version of this game, the students had bags of coins that they would shake at each other. This way the opponent could ‘size’ up the rival to see if it was worth it to “fight” for that territory.

Goals of this game:

1) To recognize the potential ultimate benefits of signaling competitive ability to prospective rivals in contests over resources.

2) To realize that strategies for winning become even more important as one can honestly “size up” an opponent. This is what happens in nature all the time.

In this game, students naturally adapt their own strategies for winning—especially when they use coins to signal “strength” for territories. For examples, some students will put keys in their bags to add “noise” while others will shake the bags slightly (to throw off rivals as to how much is actually in their bags). Some students do the waiting game and will swoop into a territory after a recent contest to try to deplete the resources of the current territory owner.

Professor Catherine Mossman held this lab in her classroom on May 5th, 2016.

56114 Marchwood by Brian Daniels

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Class 47 by quinnsrailwayphotos

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D1916 and 47843 at Exeter St Davids after working a tour from Birmingham New Street.

Japanese Class 707 by International Division at UW-Madison

Jason Shin, who combined his studies of engineering and Japanese as a student at UW–Madison, returned to campus this spring to encourage students to follow similar paths. During his visit, Shin sat in for a Japanese language class, taught by Professor Junko Mori. Photo: Kerry G. Hill/UW-Madison Division of International Studies

Gary Norman, Pilot by Guide Dogs for the Blind

Gary Norman, Pilot

Design Class | 2023 by Winona State University

Photographer: Alex Courrier

PD_0022 by Mark Sampson

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Class 81 012, Carlisle Kingmoor TMD, 04/07/1987

Master_Class_Engraved_Stone by Svetlana Sebyakina

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Master_Class_Engraved_Stone

Class 66 + China Clay by Matt Veale

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1434 Parkandillack to Exeter Riverside N.Y.

50041 Cogload Junc 1987 by Darren Harris

IMG_7490 by WPParent1

2016 Class Day - Ivy Exercises by Williams College

June 4, 2016 Roman Iwasiwka

R7T351-10 by Robert Catterson

23-4-2006 Cargofleet

66409 on 6G44 Redcar - West Burton loaded coal train

Class of 2017 027 by Nashotah House

Goathland Double Header by Rail and Landscapes

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Class 25 resident no 27278 and visiting 50049 head out of Grosmont station into the siding after arriving from Whitby. Defiance had worked solo from Grosmont to Whitby and return, before the Sulzer was attached (as booked) for the final four miles. November 2007.

MEO Class - Last Year by @kapkap

Last year in grad school

24 November 1991 - Perth - 158742 by Trevor

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Two class 158s with 158742 at the rear leaving Perth

50020 Oakhampton 5/5/1990 by Darren Harris

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Class Picture by anyjazz65

Class Picture

Seventeen people

Class 104 and 110 pass at Carrog by Ralf Edge

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BRCW Class 104 (M50454 + 50528) and BRCW Class 110 Calder Valley Unit (E51842+ 51842) pass at Carrog. The 110 was visiting Llangollen from the East Lancashire Railway during the DMU gala.

Class 91 Buffers by Peter

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Class 57 57007 by Chris Morgan

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at Carlisle dropping off 57304 at Preston then move on down to Crewe

Kings Cross 15-4-76 by David Jones

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55 005 trying to slip out un-noticed.

PD_0173 by Mark Sampson

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Class 37 37509 37506, Derby Station, 07/12/1987

47477 Oxford 22-6-91 by Brian Daniels

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9017 'The Durham Light Infantry' @ Doncaster 12.01.74 by Alan Baylis

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Mercedes S Class by AMDetails

Mercedes S Class during an AMDetails Enhancement at AMDetails. Elgin. Moray.

Part of the contract with Speyside Executive Travel, maintaining their fleet.

BOLT ONS

Gtechniq G1 Smart Glass.

Gtechniq Accredited Detailers Highlands and Aberdeen

Call (+44) 01343 547742

Email - sales@amdetails.co.uk

class-cheerhawaii13-14 by CheerHawaii USA

IMG_7846 by Irongirl

WCRC CLASS 47. by Simon Harling

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WCRC Class 47 No.47245 passes Rewe,with the 08:15 Bristol Temple Meads to Plymouth light engine working,on the 4th of August 2019.

Class 321 by Antony Whitehead

321302 at Hythe Lagoons, Colchester, working 2F41 12:00 Walton-on-the-Naze to Colchester.

Class of 1994 by University of Virginia School of Law

2014 UVA Law Reunions

Metal Sculpture by Creative Arts Workshop

JOH_1275 by star5112

Class 101 by Jacobite52

DMU heads towards Oakworth at Mytholmes

first day of fencing class by Tee Bird

N, in green, is listening intently to the instructor.

PD_0003 by Mark Sampson

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Class 08s 08916 08923 08534, Allerton TMD, 16/10/1987

57305 by Rob Barton

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57305 working 5Z64 Leicester LIP - Widnes Transport tech with the ex 508207 driving cars, now barriers, in tow, seen departing Crewe. Monday 18th November 2024

Class 71 E5001 in BR Green at Locomotion by cms832