S1, E2: The predators of the Underwater Universe have evolved to become our planet's most efficient killing machines. This episode explores the top five deadliest animals that no thinking human wants to tangle with, each more deadly than the next. But there is an unexpected twist, the #1 predator might soon be replaced by another, far more menacing killer as ocean conditions change and traditional apex predators die out.
Documentary · Mar 9, 2011 · 43 min