BY MICHAEL GRESHKO
PUBLISHED DECEMBER 5, 2018

Some 180 million years ago in what's now Germany, a dolphin-like reptile died and sank to the bottom of an ancient ocean. Remarkably, the creature's burial at sea preserved its body in stunning detail—including the first chemical clues that suggest these prehistoric animals had whale-like blubber.

Read more: link

Ask yourself it is reasonable to find 180 million year old soft tissue...