Male African forest elephants have traveled to a secret clearing in search of females. The younger bulls mimic their elders; for them, this is an exciting time to learn what it's like to be an adult elephant

Within the Central African Republic's Dzang-Sangha National Park, the secret lives of the forest elephants will finally be exposed.

Within the Central African Republic's Dzang-Sangha National Park, the secret lives of the forest elephants will finally be exposed.

The mighty male and the lonely female, these two leopards work hard to survive in a kingdom where the mighty lion is in charge. (From "Stalking Leopards," Season 5)

Conservationist Bert Dausip is on a mission to locate Eastern Borneo's unique species of pygmy elephants. (From 'Borneo's Pygmy Elephants,' Season 5)

When a territorial male otter tries to mate with a mother otter, the mom instead tries to protect her pup. The resulting battle puts her in critical condition, and her pup is lost.

Two otters, a mother and her pup, have taken up residence in a very exclusive boating club. They seem to fit right in and have made friends with the owner of the slip they reside in.

It's PANDA-MONIUM when Mutual of Omaha's Wild Kingdom returns to it's regularly scheduled time on Sundays at 7PM e/p.

What would animals say if they could talk? It might sound something like this! Catch Mutual of Omaha's Wild Kingdom, Sunday at 7PM e/p, only on Animal Planet.

Get your blood pumping with this quick otter cardio jam, and get ready for the return of Mutual of Omaha's Wild Kingdom to Animal Planet on Sundays at 7PM e/p.

It's PANDA-MONIUM when Mutual of Omaha's Wild Kingdom returns to it's regularly scheduled time on Sundays at 7PM e/p.

The vast majority of elephants left in China are captive animals. In Wild Elephant Valley, domestic elephants entertain tourists in what was once a wild elephant reserve.

After weeks of searching, conservationists find a family of three wild elephants. With fewer than 250 remaining in China, this is an incredible discovery.

Every manta ray has a unique design on its underbelly forming a sort of "fingerprint" for that manta. These patterns help researchers better understand the lives of the mantas they study.

Where do manta rays go when they leave the warm, shallow reefs of Mozambique? New satellite tracking data suggests they go further, and deeper, than anyone previously thought.

Tagging a whale shark isn't easy. The giant fish's skin is thicker and tougher than any animal in the world, and when this diver moves in, the shark adopts a defensive posture.

It's PANDA-MONIUM when Mutual of Omaha's Wild Kingdom returns to it's regularly scheduled time on Sundays at 7PM e/p.

It's PANDA-MONIUM when Mutual of Omaha's Wild Kingdom returns to it's regularly scheduled time on Sundays at 7PM e/p.

Christmas Island red crabs launch their eggs at the ocean's edge, which hatch into swimming crab larvae. These larvae may be why whale sharks are visiting Christmas Island.

Tagging a whale shark isn't easy. The giant fish's skin is thicker and tougher than any animal in the world, and when this diver moves in, the shark adopts a defensive posture.

After weeks of searching, conservationists find a family of three wild elephants. With fewer than 250 remaining in China, this is an incredible discovery.

A black bear mother, "June," is torn between her 18-month-old cubs and an attractive male named "Big Harry." Will she abandon her cubs for new love? (From "Bearwalker of the Northwoods," Season 8)

Get your blood pumping with this quick otter cardio jam, and get ready for the return of Mutual of Omaha's Wild Kingdom to Animal Planet on Sundays at 7PM e/p.

Biologist and bear expert Lynn Rogers demonstrates how black bears scent mark their territory to attract female bears. (From "Bearwalker of the Northwoods," Season 8)

The vast majority of elephants left in China are captive animals. In Wild Elephant Valley, domestic elephants entertain tourists in what was once a wild elephant reserve.

When a territorial male otter tries to mate with a mother otter, the mom instead tries to protect her pup. The resulting battle puts her in critical condition, and her pup is lost.

"Lady Luiwa," the last lioness left in Zambia's Liuwa Plains National Park, forms an extraordinary bond with a wildlife cameraman. (From "The Last Lioness," Season 8)

Every manta ray has a unique design on its underbelly forming a sort of "fingerprint" for that manta. These patterns help researchers better understand the lives of the mantas they study.

A lone lioness stalks a newborn wildebeest calf in Zambia. Watch her sprint an extraordinary distance of over 100 yards to catch her meal. (From "The Last Lioness," Season 8)

An envoy encounters a dangerous roadblock, a four-ton male Asian elephant, while searching for an elusive predator in India.

Two otters, a mother and her pup, have taken up residence in a very exclusive boating club. They seem to fit right in and have made friends with the owner of the slip they reside in.

Where do manta rays go when they leave the warm, shallow reefs of Mozambique? New satellite tracking data suggests they go further, and deeper, than anyone previously thought.