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Triassic amphibians the size of alligators perished in mass die-off in Wyoming, puzzling 'bone bed' reveals
The discovery of nearly 20 alligator-size amphibians that died together during the Triassic in what is now Wyoming is ...
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New Mammal Fossil May Show How Ear Bones Evolved from Jaw Bones
Anewly discovered mammal fossil may give clues to how bones in the middle ear evolved from jaw bones, according to a study published in Science yesterday (December 5). The malleus, incus, and ...