A decade later, Marion Petrie of Newcastle University, observed a group of male peacocks, and then clipped the eye spots out of half of the males' tails. She did not reduce the tail length, only the number of eye spots. She discovered that females preferred males with the most eye spots.
IA DNR: Eagles in Iowa - 0 views
Bald eagle history: Minnesota DNR - 0 views
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More history than science, but interesting.
Oregon Zoo Animals: Bald Eagle - 1 views
San Diego Zoo's Animal Bytes: Bald Eagle - 0 views
BBC - Wildlife Finder - Brown rat facts, pictures & stunning videos - 0 views
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Pet rats are descended from wild brown rats.
ASPCA | Rat Care - 0 views
ADW: Rattus norvegicus: Information - 0 views
Slender-tailed Cloud Rat - 0 views
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Just for fun.
How Did the Peacock Get His Tail? - 1 views
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Interesting if you have extra time.
Peacock Plumage Secrets Uncovered - 2 views
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Science behind the pretty feathers
Peafowl - National Zoo| FONZ - 0 views
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