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We all have genes that come from our ancestors that aren't used - they're not turned on. So we actu
We all have genes that come from our ancestors that aren't used - they're not turned on. So we actu
We all have genes that come from our ancestors that aren't used - they're not turned on. So we actu
We all have genes that come from our ancestors that aren't used - they're not turned on. So we actu
We all have genes that come from our ancestors that aren't used - they're not turned on. So we actu
We all have genes that come from our ancestors that aren't used - they're not turned on. So we actu
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Jack Horner:
Keratin can be very colorful, as we see in birds. We'd expect dinosaurs to be very colorful becauseJack Horner:
Unfortunately, with dinosaurs, we haven't had enough specimens to determine how much variation therJack Horner:
I found my first dinosaur bone when I was 6, growing up in Montana. Ever since then I've been interJack Horner:
Life histories tell you just about everything you need to know about an animal.Jack Horner:
A chicken grows up in a little less time than an ostrich. An ostrich takes a whole year. A chickenJack Horner:
T Rex could not run.Jack Horner:
Almost all of my graduate students say that they got interested in dinosaurs because of 'Jurassic PJack Horner:
I'm trying to figure out the biology of dinosaurs and what they were like as living creatures.Jack Horner:
Dinosaurs replace their teeth throughout their life. And T. rex replaced all of their teeth every yJack Horner:
Evolution - evolutionary change - does not happen quickly.