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Author Topic:   Theropods and Birds showing a change in kinds
xongsmith
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Posts: 2587
From: massachusetts US
Joined: 01-01-2009
Member Rating: 6.5


Message 24 of 150 (544656)
01-27-2010 6:56 PM
Reply to: Message 23 by New Cat's Eye
01-26-2010 11:35 AM


Birds of a feather...
Hey guys! Just in from China:
"A team of scientists from China and the UK has now revealed that the bristles of this 125 million-year-old dinosaur were in fact ginger-coloured feathers."
BBC News - Dinosaur had ginger feathers
Check it out.
This gives more weight to a very well-supported theory that modern birds evolved from theropods, the group of small carnivorous dinosaurs to which Sinosauropteryx belonged."
"The findings also help to resolve a long-standing debate about the evolution and original function of feathers.
"We now know that feathers did not originate as flight structures," said Professor Benton. "This suggests that they evolved, initially, for insulation and perhaps for display. " "
Kinda timely, I'd say.

- xongsmith, 5.7d

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 Message 23 by New Cat's Eye, posted 01-26-2010 11:35 AM New Cat's Eye has not replied

  
xongsmith
Member
Posts: 2587
From: massachusetts US
Joined: 01-01-2009
Member Rating: 6.5


Message 141 of 150 (546112)
02-08-2010 2:28 PM
Reply to: Message 140 by caffeine
02-08-2010 5:20 AM


Re: Feathers as novel features
Caffeine writes:
A little bit of reading about down insulation on the web seems to suggest that you're right about it being pretty useless when wet. The consensus also seems to be that it's pretty much the supreme insulator when dry, however.
And, remember - who said any of these sorts of features had to be optimal? They only had to be good enough.
Edited by xongsmith, : change period to question mark.

- xongsmith, 5.7d

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 Message 140 by caffeine, posted 02-08-2010 5:20 AM caffeine has not replied

  
xongsmith
Member
Posts: 2587
From: massachusetts US
Joined: 01-01-2009
Member Rating: 6.5


Message 148 of 150 (669847)
08-03-2012 11:22 PM


Is this article I found on Facebook relevant to this thread?
Why the world has to ignore ReptileEvolution.com - Scientific American Blog Network

- xongsmith, 5.7d

Replies to this message:
 Message 149 by arachnophilia, posted 08-04-2012 12:05 AM xongsmith has seen this message but not replied

  
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