Sea Lion Gives Diver 'Puppy Dog' Eyes

Dead Whale Missing Chunks of Flesh Washes Up on Australian Beach

Dolphin Rescued After Getting Tangled in Crab Pot Line

Leo the Service Dog Connects with Hope the Dolphin at Florida Aquarium

Freediver Films Incredible Close Encounter With Pod of Humpback Whales

Sea Otter at Oregon Zoo Demonstrates Correct Way to Open Oysters

Walruses Make 'Amazing' Sounds on Command at Washington Zoo

Sea Otter Pup Reunited With Mother in California's Morro Bay

Friendly Seal Surprises British Bather With Hug

Horses Attract Dolphins' Attention at Perth Beach

Beached Sperm Whale Dies on Florida Gulf Coast

Sea Lion Jumps on Boat in Attempt to Escape Orcas in British Columbia

Orcas Swim Close to Shore in Esquimalt, British Columbia

Walrus Drinks Straight From Hose, Sings at Tacoma Zoo

7-Year-Old Boy Is Dedicated to Saving the Earth One Can at a Time

'No Respect': Person Slaps Dead Whale's Tail on California Beach

'That is Insane!': Whale Breaches Near New York City's Verrazzano-Narrows Bridge

Bull Seal Gets Acquainted With Diver Off The Coast of Northumberland, England

'Sea Doggo' Gets Curious About Diver's Camera

Wally the Walrus Relaxes Aboard Boat on Return to Irish Coast

Pod of California Dolphins Swim With Blue Whale in 'Rare' Interaction

Wayward Fur Seal Rescued from California Business

Polar Bear Celebrates 26th Birthday With Cake at Washington Zoo

Whale Carcass Washes Up On Beach Near Golden Gate Bridge

Sea Otters Enjoy Ice Snack at Washington's Point Defiance Zoo