When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures.
;
Dorudon atrox: Early Whale with Vestigial Hind Limbs
46
Dorudon atrox
Dorudon ("spear-tooth") lived alongside 40 million years ago. They were about 5 m (16 ft) long and are an example of a early whale. Cetaceans branched off aproximately 50 million years ago. Vestigial hind limbs are visible. They had a tail fluke. | 2021-08-01