Extras

Video thumbnail: NOVA Spinosaurus vs. Alligator

NOVA

Spinosaurus vs. Alligator

A tame alligator named Bubba betrays the secrets of the largest predator that ever lived.

Spinosaurus vs. Alligator

Video thumbnail: NOVA Bigger Than T. rex Preview

NOVA

Bigger Than T. rex Preview

Meet Spinosaurus—the lost killer of the Cretaceous and the world’s larger predator ever.

Bigger Than T. rex Preview