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| Date: | 5/23/2013 1:18:49 AM |
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Hi Rusty
I'm afraid mom got out of character yesterday when she had me talk about mammals. WE are not mammals, WE are birds, but our humans ARE mammals.
Today's animal is a fossil of Psittacosaurus. You know we are psittacines, right? Well, this guy is not one of our ancestors, but he's named like us because of his beak. I'm saying him for a reason, you know. It's hard to see, but if you can magnify the pic at all, you'll notice protofeathers on his tail. They are kind of long and pointed, like our pinfeathers in a way. What's interesting is that they have found psittacosaurs with and without these quills, so the best guess is that the ones with are the guys and the ones without are the girls. It's kind of like songbirds who have more colorful males, or peacocks with more colorful males, etc. It's the same old story, the guys have to 'dress up' to get a mate! They have to impress the girls with how healthy they are and they do that by being handsome. Thanks, as always, for your vote, here's a big hug and vote for you, too. Hugs, Gizmo |
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