When Ichthyosaurs Led a Revolution in the Seas
Season 2 Episode 27 | 9m 38s | Video has closed captioning.
The marine reptiles Ichthyosaurs arose after The Great Dying, which wiped out at least 90 percent of life in the oceans, changing the seas forever and triggering a new evolutionary arms race between predator and prey.
Problems Playing Video? | Closed Captioning