Season 5

(2015)

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Season 4

Episodes 11

1 Mutants

September 11, 2015

45m

The Season 5 premiere examines animals that have adapted in order to survive. Included: the moray eel that has evolved a second set of teeth to help swallow; the Komodo dragon that kills using bacteria; and sand tiger sharks who eat their siblings in the womb.

2 Survival of the Strangest

September 18, 2015

45m

A look at beavers building emergency bunkers and spiders preparing traps to catch their next meal.

3 Sharks!

September 25, 2015

45m

Sharks are one of the oldest species on the planet, so they have had plenty of time to evolve and develop some of the weirdest and most diverse skills and survival tactics. Discover the odd behaviors of sharks of all sizes, from the vicious hunters to the scrappy bottom-feeders, as they have never been seen before.

4 Meet the Parents

October 2, 2015

45m

Parenthood practiced by naked mole rats and egrets.