Every summer, tiger sharks stream into Australia's Shark Bay and life becomes treacherous for dolphin families. A marine biologist records the first few weeks of a newborn dolphin's life and its mother's attempt to keep her calf alive.
Biologist Con Slobodchikoff believes he's discovered a complex language after years of studying prairie dog calls. This may help in efforts to preserve the species.
A team of veterinarians in China breed giant panda cubs in captivity using top-notch science and procedures, in an effort to avoid the extinction of the species.
