As the dry season approaches, tensions rise on Lemur Island, both between rival gangs and within their own ranks. Get a view from the battlefield as the female leaders fiercely defend their turf, while their newborn infants cling to them for safety.

As food and water become scarce, Crystal, the fierce leader of the Ruins gang, sets her sights on rival Kati's territory and its neighboring fruit trees. Watch as Crystal's move and a raid by outside invaders lead to dire consequences for one troop.

Stake out the Bay Family's lush territory, where matriarch Anna offers lavish feasts but faces internal dissent. Size up her rival Mia, the streetwise Townies leader who's eyeing a lifestyle upgrade, and check in with the isolated Mangrove Family.

Swim upriver with the Bay Family, where Anna offers a hand raising her grandpups before heading home to find interlopers on her turf. Watch a flood in the mangroves nearly sweep away a baby, and see the Townies eat clean through their resources.

Get ready to rumble in Marina Bay, where the Nomads and Townies are squatting while Anna and the Bay Family are away upriver. Soak up the peaceful otter life in this luxurious waterway before the surprise early return of its rightful owners.

A dam is an engineering feat, controlling massive amounts of water. But it can also wreak havoc on the animals that call those waters home.

Low tide exposes a band of shore called the intertidal zone. It's a place of stunning extremes, attacked by hurricane force waves and exposed to baking heat. Creatures here have evolved in countless bizarre ways. Scientists explore this alien realm.

Trail Atlantic puffins, Prairie rattlesnakes, Alaskan caribou and other animals as they travel across the international boundary between the U.S. and Canada. See how they can move from safety to target by crossing a line they had no say in creating.

Watch sea lion Lola take her first chaotic steps into a macho battlefield on Argentina's coast. Cheer as this baby learns key vocal and swimming skills, fights to stay by mom Maria's side, and makes a lightning-fast escape from the jaws of death.

Explore the lives of Madagascar's cold-blooded creatures. Chameleons, frog, lizards, and snakes have all adapted in order to survive on the island. We take a look at how they find food, reproduce, and avoid predators.

The Arabian landscape is a virtually waterless desert where rain scarcely falls and animals endure blistering temperatures. But for 3 months every year, a remote region on the south west coast undergoes an astonishing transformation… into a lush, verdant oasis.

Follow several different males as they roam the land, climb up the social ladder, and fight for their mating rights in Eastern Grey colony. For these bucks, the drive to perpetuate their species promises a life full of risk and reward.

The Addo Elephant National Park sits in the heart of the Eastern Cape of South Africa, covering over 1600 square kilometres of land. While the elephants are the stars of the park, Addo is the only reserve in the world where visitors can see all of the "big seven": lion, leopard, elephant, buffalo, white rhino, southern right whale, and great white shark.

Low tide exposes a band of shore called the intertidal zone. It's a place of stunning extremes, attacked by hurricane force waves and exposed to baking heat. Creatures here have evolved in countless bizarre ways. Scientists explore this alien realm.

Trail Atlantic puffins, Prairie rattlesnakes, Alaskan caribou and other animals as they travel across the international boundary between the U.S. and Canada. See how they can move from safety to target by crossing a line they had no say in creating.

As the dry season approaches, tensions rise on Lemur Island, both between rival gangs and within their own ranks. Get a view from the battlefield as the female leaders fiercely defend their turf, while their newborn infants cling to them for safety.

Explore the lives of Madagascar's cold-blooded creatures. Chameleons, frog, lizards, and snakes have all adapted in order to survive on the island. We take a look at how they find food, reproduce, and avoid predators.

The Arabian landscape is a virtually waterless desert where rain scarcely falls and animals endure blistering temperatures. But for 3 months every year, a remote region on the south west coast undergoes an astonishing transformation… into a lush, verdant oasis.

Follow several different males as they roam the land, climb up the social ladder, and fight for their mating rights in Eastern Grey colony. For these bucks, the drive to perpetuate their species promises a life full of risk and reward.

The Addo Elephant National Park sits in the heart of the Eastern Cape of South Africa, covering over 1600 square kilometres of land. While the elephants are the stars of the park, Addo is the only reserve in the world where visitors can see all of the "big seven": lion, leopard, elephant, buffalo, white rhino, southern right whale, and great white shark.

Low tide exposes a band of shore called the intertidal zone. It's a place of stunning extremes, attacked by hurricane force waves and exposed to baking heat. Creatures here have evolved in countless bizarre ways. Scientists explore this alien realm.

Trail Atlantic puffins, Prairie rattlesnakes, Alaskan caribou and other animals as they travel across the international boundary between the U.S. and Canada. See how they can move from safety to target by crossing a line they had no say in creating.

Watch sea lion Lola take her first chaotic steps into a macho battlefield on Argentina's coast. Cheer as this baby learns key vocal and swimming skills, fights to stay by mom Maria's side, and makes a lightning-fast escape from the jaws of death.

Explore the lives of Madagascar's cold-blooded creatures. Chameleons, frog, lizards, and snakes have all adapted in order to survive on the island. We take a look at how they find food, reproduce, and avoid predators.

The Arabian landscape is a virtually waterless desert where rain scarcely falls and animals endure blistering temperatures. But for 3 months every year, a remote region on the south west coast undergoes an astonishing transformation… into a lush, verdant oasis.

Follow several different males as they roam the land, climb up the social ladder, and fight for their mating rights in Eastern Grey colony. For these bucks, the drive to perpetuate their species promises a life full of risk and reward.

The Addo Elephant National Park sits in the heart of the Eastern Cape of South Africa, covering over 1600 square kilometres of land. While the elephants are the stars of the park, Addo is the only reserve in the world where visitors can see all of the "big seven": lion, leopard, elephant, buffalo, white rhino, southern right whale, and great white shark.

Low tide exposes a band of shore called the intertidal zone. It's a place of stunning extremes, attacked by hurricane force waves and exposed to baking heat. Creatures here have evolved in countless bizarre ways. Scientists explore this alien realm.