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 lives of elephant bulls in Mount Kilimanjaro and Amboseli. Get a rare glimpse into the complexity of these giants, from their drive for dominance to the subtle social bonds that form between males.

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.

At Reteti Sanctuary in Kenya, the team helps a disabled orphan elephant named Long'uro find his confidence, nurses a sick calf back from the brink, and manages an unexpected encounter inside an enclosure.

As Reteti Sanctuary prepares to release its oldest orphans into the wild, a baby elephant is rescued from a waterhole, an orphaned zebra finds hope, and Long'uro and friends learn how to survive the challenges of the dry season.

Ranthambore National Park in northern India is known for its spectacular wildlife and, specifically, its magnificent tigers and these big cats have an extraordinary story to tell. Once hunted by Queen Elizabeth II, then protected by Prime Minister Indira Gandhi, these tigers have grown from a group of twelve terrified cats into a fearless clan 70-odd strong.