Oxfordshire, U.K.- 149 million years B.C. This episode follows a shoal of young fish-like Ophthalmosaurus as they struggle to survive the Late Jurassic seas, evading predators like the gigantic Liopleurodon. On land, the dinosaur Eustreptospondylus scrapes out a living as a scavenger, occasionally preying on pterosaurs like Rhamphorhynchus. Written by
Did You Know?
Although the narrator claims that ichthyosaurs were unique among marine reptiles for giving live birth, we now know that most if not all marine reptiles were likewise viviparous. This is because recent fossils have shown that their anatomy didn't allow them to pull themselves onto dry land. See more
Eustreptospondylus was already extinct by the Late Jurassic, which is the period this episode takes place in. See more
The most fearsome predator of the Jurassic is watching his prey. Peering through the water, the carnivore fixes on his unwary victim, waiting for the perfect moment to strike.