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3:27
501 meets her surrogate mother Toola.

3:09
Watch how a mother otter educates her baby.

1:08
To protect against herbivores, wild tobacco plants deposit sweet but deadly secretions.

6:30
Chris Bowser coordinates a program which trains students to monitor local eel populations.

4:30
The remarkable life cycle of the eel, a catadromous fish found all over the globe.

2:59
Rockhopper penguins brave crashing waves to reach their breeding grounds.

3:20
Breathtaking footage of a wolf pack going after a herd of bison.

2:31
Emperor dads stand watch as penguin hatchlings peck their way free.

2:24
Seasonal rains make home habitable for thousands of zebras in Botswana’s saltpans.

1:25
Sir David Attenborough uses slow motion photography to examine kestrel flight.

1:22
Sir David Attenborough accompanies an imprinted family of Greylag geese in flight.

2:06
How the work of Dian Fossey and David Attenborough helped protect the mountain gorilla.