S1 E4: Dolphins

Aired: 8/5/2014 | 0:54:51 | Expires: 7/15/2024 | Episode
Joy and Mark investigate the reproductive secrets of marine mammals to learn how animals that breathe air manage to mate, give birth and raise their young underwater. Witness a dolphin birth, explore the difficulties of breastfeeding underwater and learn how dolphin and whale young avoid predatory killer whales.