Extras

Video thumbnail: NOVA Animal Minds: Dogs Preview

NOVA

Animal Minds: Dogs Preview

How do dogs, sharks, dolphins, or birds experience the world?

Animal Minds: Dogs Preview

Video thumbnail: NOVA The Mysteries of Optic Flow

NOVA

The Mysteries of Optic Flow

Birds use a trick of the eye called “optic flow” to zip through forests without colliding.

The Mysteries of Optic Flow

Video thumbnail: NOVA Five Dogs With Crazy Résumés

NOVA

Five Dogs With Crazy Résumés

Learn about the traits we most prize in dogs, and the bizarre jobs they were bred for.

Five Dogs With Crazy Résumés