What’s in a head? What’s not? Animals sense the world through their heads, and judging from the vast variety of head shapes, sizes, and designs, they sense the world in unique ways. Care to sense the world through the eyes, ears, or nose of a different animal? Then come along!

Originally released by Bellum Entertainment/Midori Entertainment, 2012. Streaming video file encoded with permission for digital streaming by Infobase on July 11, 2016.

Categorizing "the Head" (3:39); --Where is the Head? (3:06); -- Who Has a Big Head? (4:03); -- Defensive and Attractive Heads (4:43); -- Sexual Dimorphism (4:48); -- Credits: Head Cases: Animal Atlas (1:19); .