These cold-blooded behemoths would be ranked contenders in any ring.
As it roamed Pangaea 260 million years ago, the cow-sized herbivore Bunostegos akokanensis stood out -- quite literally -- from its peers.
Which came first: mountains or the creatures on them? Research on a tropical mountain paradise in Borneo helps answer that riddle.
T. rex and other big dinosaurs had teeth that were specialized for tearing through flesh and bone -- only one living animal has similar tooth structure. Can you guess which?
Discovery of the world's oldest known snake reveals that it lived among dinosaurs, evolved from lizards, and had four tiny feet.
About 48 million years ago, a natural miracle occurred: The first known “Jesus lizard” walked on water. Continue reading →
The tortoises have been released on Santa Fe Island, where a similar subspecies went extinct more than 150 years ago.
Eight-inch-long Grandfather turtle did not have a shell, but it had the makings of one.
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