TV-G
S1 • E3 Oct 24, 2009 59m8.5
Mammals dominate the planet. They do it through having warm blood and by the care they lavish on their young. Filming in the bitter Antarctic winter reveal how a mother Weddell seal wears her teeth down keeping open a hole in the ice so she can catch fish for her pup. A powered hot air balloon captures stunning images of millions of migrating bats as they converge on fruiting trees in Zambia.
