The Permian • 2017 • episode "S1E1" • Ancient Earth

3:50

When you picture the lowest levels of the food chain, you might imagine herbivores happily munching on lush, living green plants. But this idyllic image leaves out a huge (and slightly less appetizing) source of nourishment: dead stuff. John C. Moore details the "brown food chain," explaining how such unlikely delicacies as pond scum and animal poop contribute enormous amounts of energy to our ecosystems.

TED-Ed • Nature

45:12

The leatherback sea turtle is a magnificent creature that can be found in Atlantic, Pacific, and Indian Oceans. This ancient species swims faster, travels further, and dives deeper than any other reptile on the planet. In the Atlantic, they migrate every year from their nesting grounds in the Caribbean to the chilly waters off the east coast of Canada where they feast on jellyfish. This epic annual journey – at a staggering 12,000 km – is the longest for any reptile in the world.

S53E13 • The Nature of Things • 2014 • Nature

20:01

Marijuana experts discuss the rise of potent "sexually frustrated" cannabis plants, the quest for consistency in weed strains and the history of hemp.

S1E12 • Explained • 2018 • Nature

56:20

Begins in northern Norway, 500 kilometres north of the Arctic Circle. Here, there is only just enough light for the pine trees to survive, but it is extremely cold during the winter. Pine cone seeds provide one of the few foods available at this time of year, and large herbivores such as the moose must also rely on their fat reserves.

3/12 • The Living Planet • 1984 • Nature

9:53

The discovery of biological evolution is among the most significant scientific findings of the last 200 years. It has lead us to thousands of new discoveries and is greatly expanding our understanding of the natural world.

Stated Clearly • Nature

44:18

Their habitat once stretched across the Prairies, but when humans wiped out the one thing they eat, the black-footed ferret disappeared. The only native North American ferret, this mysterious animal became the most endangered species in the world. For many years, they survived only in zoos. Now a fledgling project is attempting to bring the black-footed ferret back to Saskatchewan. This dramatic story of the ferrets’ reintroduction to the wild unfolds in Return of the Prairie Bandit, a new documentary by Kenton Vaughan set in the stunning prairie of southern Saskatchewan.

S50E13 • The Nature of Things • 2011 • Nature