New. Invisible Signals: Through sense, scent and sight, animals can communicate in ways that are outside of the reach of humans. Here, scientists dig further into their secrets. (S1, ep 3) [S,AD]
Rumble in the Jungle: From the trumpeting of enormous elephants to the chatter of seal colonies, discover some of the remarkable ways that animals speak to one another. (S1, ep 2) [S,AD]
Body Language: Scientists are just beginning to unravel the mysteries of animal communication. See how our planet's creatures use body language to express themselves. (1 of 3) [S,AD]