Transylvania - a region in central Romania that most people have heard of but few can place on a map. It is a land of mystery and mythology and home to some of the biggest wolf packs in the world who roam across seemingly endless untouched mountain ranges. It is a sanctuary to vast ancient forests that have never seen a chainsaw and are the realm of the magnificent lynx and European brown bear. It is a land where crumbling medieval villages abandoned by humans long ago have been resettled by elegant storks - the mythical child-bearers of olden times. There are bats in the crumbling castles, and in the Basilica, we follow one family of mouse-eared bats as they struggle to bring up their fragile young in the ruined walls.

Transylvania - a region in central Romania that most people have heard of but few can place on a map. It is a land of mystery and mythology and home to some of the biggest wolf packs in the world who roam across seemingly endless untouched mountain ranges. It is a sanctuary to vast ancient forests that have never seen a chainsaw and are the realm of the magnificent lynx and European brown bear. It is a land where crumbling medieval villages abandoned by humans long ago have been resettled by elegant storks - the mythical child-bearers of olden times. There are bats in the crumbling castles, and in the Basilica, we follow one family of mouse-eared bats as they struggle to bring up their fragile young in the ruined walls.

Transylvania - a region in central Romania that most people have heard of but few can place on a map. It is a land of mystery and mythology and home to some of the biggest wolf packs in the world who roam across seemingly endless untouched mountain ranges. It is a sanctuary to vast ancient forests that have never seen a chainsaw and are the realm of the magnificent lynx and European brown bear. It is a land where crumbling medieval villages abandoned by humans long ago have been resettled by elegant storks - the mythical child-bearers of olden times. There are bats in the crumbling castles, and in the Basilica, we follow one family of mouse-eared bats as they struggle to bring up their fragile young in the ruined walls.

Transylvania - a region in central Romania that most people have heard of but few can place on a map. It is a land of mystery and mythology and home to some of the biggest wolf packs in the world who roam across seemingly endless untouched mountain ranges. It is a sanctuary to vast ancient forests that have never seen a chainsaw and are the realm of the magnificent lynx and European brown bear. It is a land where crumbling medieval villages abandoned by humans long ago have been resettled by elegant storks - the mythical child-bearers of olden times. There are bats in the crumbling castles, and in the Basilica, we follow one family of mouse-eared bats as they struggle to bring up their fragile young in the ruined walls.

With bulbous eyes, two long sharp tusks, a long mustache and one ton of blubber, the walrus is far from majestic. But for Kirk Johnson, scientist and Sant Director of the Smithsonian National Museum of Natural History, the walrus has been a creature close to his heart for 30 years. Johnson will follow his passion and trek across the Arctic to uncover the hidden lives of these lumbering giants, their cultural significance to the native peoples of the North, and the threats they face as climate change shrinks the sea ice. Johnson will explore the walrus' evolutionary past and reveal the creature's ability to adapt, survive and thrive through the ages. With global climate change, perhaps this colossal creature will be forced to adapt once more.

With bulbous eyes, two long sharp tusks, a long mustache and one ton of blubber, the walrus is far from majestic. But for Kirk Johnson, scientist and Sant Director of the Smithsonian National Museum of Natural History, the walrus has been a creature close to his heart for 30 years. Johnson will follow his passion and trek across the Arctic to uncover the hidden lives of these lumbering giants, their cultural significance to the native peoples of the North, and the threats they face as climate change shrinks the sea ice. Johnson will explore the walrus' evolutionary past and reveal the creature's ability to adapt, survive and thrive through the ages. With global climate change, perhaps this colossal creature will be forced to adapt once more.

With bulbous eyes, two long sharp tusks, a long mustache and one ton of blubber, the walrus is far from majestic. But for Kirk Johnson, scientist and Sant Director of the Smithsonian National Museum of Natural History, the walrus has been a creature close to his heart for 30 years. Johnson will follow his passion and trek across the Arctic to uncover the hidden lives of these lumbering giants, their cultural significance to the native peoples of the North, and the threats they face as climate change shrinks the sea ice. Johnson will explore the walrus' evolutionary past and reveal the creature's ability to adapt, survive and thrive through the ages. With global climate change, perhaps this colossal creature will be forced to adapt once more.

With bulbous eyes, two long sharp tusks, a long mustache and one ton of blubber, the walrus is far from majestic. But for Kirk Johnson, scientist and Sant Director of the Smithsonian National Museum of Natural History, the walrus has been a creature close to his heart for 30 years. Johnson will follow his passion and trek across the Arctic to uncover the hidden lives of these lumbering giants, their cultural significance to the native peoples of the North, and the threats they face as climate change shrinks the sea ice. Johnson will explore the walrus' evolutionary past and reveal the creature's ability to adapt, survive and thrive through the ages. With global climate change, perhaps this colossal creature will be forced to adapt once more.

A unique, non-invasive, mountain lion study uses a giant network of trail cameras scattered throughout Montana's Sapphire Mountains over a decade to piece together the life story of a female mountain lion. This film weaves clips of mountain lions and their complex interactions with each other and the rest of the forest world into a story about life and death that contains never-before-captured events and behaviors at every turn.

A unique, non-invasive, mountain lion study uses a giant network of trail cameras scattered throughout Montana's Sapphire Mountains over a decade to piece together the life story of a female mountain lion. This film weaves clips of mountain lions and their complex interactions with each other and the rest of the forest world into a story about life and death that contains never-before-captured events and behaviors at every turn.

Follow in the footsteps of London and New York's pigeon flocks to uncover their secret world as never before. Witness the challenges of city life and how the humble pigeon has overcome them! With a world population hundreds of millions strong, feral pigeons are our most familiar neighbors. They have been an ever-present companion to people for millennia, yet despite such familiarity, there's still so much we don't know about the remarkable, resilient pigeon!

On a remote stretch of Central America's Pacific coast, the lush, On a remote stretch of Central America's Pacific coast, the lush, volcanic landscape gives way to a startlingly different world: a dry volcanic landscape gives way to a startlingly different world: a dry tropical forest - one of the last of its kind on the planet - where a tropical forest - one of the last of its kind on the planet - where a newly resurgent population of jaguars has reclaimed their kingdom. In newly resurgent population of jaguars has reclaimed their kingdom. In the waters at its edge, legions of olive ridley sea turtles emerge the waters at its edge, legions of olive ridley sea turtles emerge from the ocean for one of nature's most spectacular events, a mass from the ocean for one of nature's most spectacular events, a mass nesting ritual called the arribada. Here, two unlikely creatures- the nesting ritual called the arribada. Here, two unlikely creatures- the sea turtle and the jaguar - meet with spectacular consequences for sea turtle and the jaguar - meet with spectacular consequences for both their species and the very different environments they inhabit. both their species and the very different environments they inhabit.

Deep in the wilds of Florida, writer and naturalist Joe Hutto was given the rare opportunity to raise wild turkeys from chicks. Eventually, he had to let his children grow up and go off on their own, but this was harder than he ever imagined.