Show Off Your American Gamefowl and Chat Thread!!!

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short but good article. I wonder if feathering was originally protection against cold for young/adolescent raptors?  Be curious to know if they molted into new feathers or perhaps lost feathers as age went on.. But curious to know if adults used feathers as mating signals like today birds do... Only time and fossils will tell...



The evidence is getting stronger that feathers, most likely for thermal regulation, were present in the critters that were not dinosaurs but had the upright mode of walking whether on two legs or four. The most basal dinosaur that was ancestral to all there after was bipedal and is very likely to have had them as well. Later species that where not bigger than a horse may very well have had feathering even as adults. Pattern of mobility likely demanded homeothermy and insulation would have been required at night in most locations even though warmer than today.

The big stuff likely had bigger need for dumping heat like elephants and rhinos so would lose feathers at some point. In the really big species I can see the potential for dumping heat through very long tails, neck or in some cases sails.
 
Check out this redfishes eye

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Damaged lense. Likely can see little more than shadows through it. I see that in fish handled a lot.
 
Is that why it sticking out like?

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Sticking out might be related to swelling behind the eye. I have seen lots of freshwater with rather substantial parasitic worms actually inside socket behind eye. The parasite can be gently grabbed through membrane behind eye with tweezers then pulled out allowing eye to go back into natural position. I have done that numerous times with Orange-spotted Sunfish and some Bluegill.
 
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