A look at the rare mammals that live in the ocean, such as dolphins and whales, and how their food and environment make them appear and act unique.

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

What is a Mammal? (3:32); --Cetacean (2:19); -- Animal Facts (1:23); -- Beluga Whale vs. Pacific White-Sided Dolphin (2:39); -- Harbor Seals (2:09); -- Animal Facts (2:07); -- Elephant Seal (2:38); -- Manatee (2:26); -- Funny Animal Voice-overs (1:05); -- Credits: Aquatic Mammals: Animal Atlas (1:18); .