Hunger at Sea (Oceans) • 2015 • episode "4/7" • The Hunt

4:24

How can you tell the two poles apart? Where are the penguins? What about the bears? The Arctic pole is located in the Northern Hemisphere within the deep Arctic Ocean, while the Antarctic pole is smack in the middle of the ice-covered Antarctica. Camille Seaman describes how enterprising people and organisms have found ways to reside around both poles despite the frigid temperatures.

2013 • TED-Ed • Nature

58:46

The amazing web of life centred on the Brazil nut tree is revealed.

Secrets of Our Living Planet • Nature

41:49

Make way for the ocean’s biggest fish – a whale shark! This awe-inspiring gentle giant feeds on plankton and can reach 18 metres in length. Plus, get a dose of adrenaline as you swim with thousands of hammerhead sharks that gather in massive pulse-quickening shoals in the famous Galapagos Islands!

2011 • The Magic of The Big Blue • Nature

53:06

At the very northern edge of North America is Ellesmere Island, where the unforgiving Arctic winds tear through the tundra, dipping temperatures to 40 below zero. Running through this shifting sea of snow and ice is one of the most hardened predators on the planet, the White Wolf. But as the spring melt approaches, these roaming hunters must adapt to being tethered parents as new additions to the pack have just been born. With their herds of prey continuing to move, we witness a desperate race to keep up and bring back a kill to the hungry mothers and cubs. Traveling farther and farther away from their den each day puts these hunters and their children at risk in this fight for survival.

2018 • Nature

21:49

This episode explores the story of two animals that hide behind seemingly impregnable coat of arms. Can Sir David Attenborough get in behind their armour and reveal their mysteries?

Natural Curiosities • Nature

4:17

Traveling is extremely arduous for microscopic sperm -- think of a human trying to swim in a pool made of...other humans.

TED-Ed • Nature