What's happening?

Nature: 23x2

Shark Mountain

Rarely seen aspects of shark behavior highlight this extraordinary view of undersea life, including an organized feeding frenzy with other predators that help herd their prey; night hunting in packs; and their violent courtship ritual. Also: the red-lipped batfish, which β€œwalks” on the ocean floor via modified fins.

Nature: Season 23 Episode 2
Nov. 14, 2004