An adult polar bear named Agee has an unusually close bond with Mark Dumas, the professional animal trainer who has hand-raised her since she was a cub. They swim together and cuddle. She even purrs like a cat when he's near.

At a privately-owned wildlife park in South Africa, Or Lazmi has integrated herself into a group of four lions. Having known her since they were cubs, the lions treat her as a dominant figure and allow her to get kissably close.

Jessica may not be a baby hippo anymore, but that doesn't stop her from enjoying a bottle of her favorite tea, sleeping on the porch with the family dog, or eating dinner in the kitchen with her human parents, Tonie and Shirley Joubert.

Dolphins in the coastal town of Laguna, Brazil have formed a strong symbiotic bond with fishermen working in the bay. The dolphins herd schools of fish towards the shoreline and then give distinct signals telling the fishermen when to cast nets.

Dominic Ehrler was taking his regular walk at Los Angeles' Echo Park Lake when an unusual admirer took him by surprise. He looked down to see Maria, an adult goose, following his every move. They've been friends ever since.

After more than 15 years of studying their social hierarchies and interacting with them, animal behaviorist Kevin Richardson has earned his spot in a clan of hyenas.

Talk about an unlikely romance! Charles the Kudu is not the least bit intimidated by the impressive height of his giraffe girlfriend, Camilla.

A mother's instinct knows no bounds! Cheesecake the Capybara raises a litter of adorable puppies like they were her own.

A couple is surprised to find that a cat on their family farm has adopted ducklings.

Originally kept together as illegal pets, Baloo, Shere Khan, and Leo share an unorthodox brotherly bond. The trio now cuddle and play in their new home at a sanctuary in Atlanta, Georgia.

How can a Greenland shark and a parasitic crustacean work together? Find out in our top ten list of odd couples!

The love of honey brings the Honeyguide and Honey Badger together in our top ten list of odd couples!

The love of honey brings the Honeyguide and Honey Badger together in our top ten list of odd couples!

How can a blind pistol shrimp and a sighted goby fish help each other? Find out in our top ten list!

Why would a dangerous predator and prey decide to live together? Find out how the venomous tarantula makes use of the very small frog.

What could a giraffe and a bird have in common? Find out how the pest of one animal could be the treat of another in our top ten list of odd couples!

Think you've got it tough? Try being a nursery for the offspring of a bitterling. This mussel get all of the hard work and none of the reward.

How can a Greenland shark and a parasitic crustacean work together? Find out in our top ten list of odd couples!

Parasite got your tongue? Find out where the snapper and it's tongue parasite place on our top ten list!

Find out where the mind boggling partnership of the badger and the coyote place in our top ten list!

How can a blind pistol shrimp and a sighted goby fish help each other? Find out in our top ten list!

No one wants to be stuck with a smelly partner, right? Find out how the pheromones of the caterpillar transforms the tree ant into a helpful partner.

The love of honey brings the Honeyguide and Honey Badger together in our top ten list of odd couples!

Why would a dangerous predator and prey decide to live together? Find out how the venomous tarantula makes use of the very small frog.

What could a giraffe and a bird have in common? Find out how the pest of one animal could be the treat of another in our top ten list of odd couples!

Originally kept together as illegal pets, Baloo, Shere Khan, and Leo share an unorthodox brotherly bond. The trio now cuddle and play in their new home at a sanctuary in Atlanta, Georgia.

A mother's instinct knows no bounds! Cheesecake the Capybara raises a litter of adorable puppies like they were her own.

A couple is surprised to find that a cat on their family farm has adopted ducklings.

Talk about an unlikely romance! Charles the Kudu is not the least bit intimidated by the impressive height of his giraffe girlfriend, Camilla.

Dominic Ehrler was taking his regular walk at Los Angeles' Echo Park Lake when an unusual admirer took him by surprise. He looked down to see Maria, an adult goose, following his every move. They've been friends ever since.

Jessica may not be a baby hippo anymore, but that doesn't stop her from enjoying a bottle of her favorite tea, sleeping on the porch with the family dog, or eating dinner in the kitchen with her human parents, Tonie and Shirley Joubert.

After more than 15 years of studying their social hierarchies and interacting with them, animal behaviorist Kevin Richardson has earned his spot in a clan of hyenas.