Smithsonian Magazine on MSN
Sharklike Fish With Weird, Buzz-Saw Jaws Sliced Through the Seas, Then Vanished. Now, Paleontologists Are Unraveling Their Secrets
These "total monsters of fishes" are extinct today, though new clues about their lives come from CT scans and their closest ...
Scientists refer to sperm whales with the more sensible species name Physeter macrocephalus. Reaching up to 18.5 meters (60 ...
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