Follow a paleontologist on an Arctic adventure to uncover the hidden lives of walrus and the threats they face as climate change shrinks the sea ice.

Never-before-seen behaviors are shown in a decade-long mountain lion study throughout Montana’s mountains through the eyes of a female named Willow.

Uncover the secret world of New York and London’s pigeon flocks, seeing how they adapt to the challenges of city life and thrive alongside people.

In a remote region on the Pacific coast of Costa Rica, a lush landscape characterized by volcanoes meets tropical dry forest. Right there is a very special beach where two completely different species meet: Sea turtles meet jaguars. This has spectacular consequences for both sides and their environment. The two animals form an alliance that is as surprising as it is unintentional. The predator suddenly becomes a protector.

Follow the complex lives of giant elephant bulls in Amboseli and Mount Kilimanjaro.

Animal parents must balance risk and reward to raise their young in grasslands. In Zambezi, wild dogs must focus the energy of their unruly teenagers for survival, and in India, an expecting langur learns parenting skills by babysitting.

Animal parents must overcome freshwater’s constant changes. A frog dad scales giant Amazonian trees with tadpoles on his back, while an elephant mom must choose between the safety of her baby and the quest for water and food.

Ocean parents must master dedication and intelligence to raise their young. In Australia, an orca mother teaches her young how to hunt blue whales, while in Indonesia, a Banggai cardinalfish protects his young inside his mouth.

See how jungle animal parents raise children by mastering their environment. An orangutan spends eight years teaching her baby the ways of jungle living, and a crab becomes the ultimate chemist to create the perfect home for her crablets.

Parenthood is the ultimate journey, full of danger. Lionesses teach their cubs how to survive by showing them how to tackle giant buffalo. Burrowing owls provide an underground nest for their chicks and mimic a rattlesnake’s sound to protect them.