Get to know this large marine mammal.

Both male and female Bighorn sheep have horns, but only the males' continue to grow as they get older.

Due to human encroachment on their natural habitat in the mountains, they are moving higher and higher up.

These fierce animals are extremely well-built for cold weather.

At 12 weeks old, the cubs are very energetic and already showing unique personalities.

The San Diego Zoo surprised the bears with the snow day, and they sure look like they're having a blast.

The red panda is a vulnerable species, so saving their habitat is critical. Here's what the Red Panda Network is doing to help and how you can support their efforts.

Meet Xiao Liwu, a giant panda born at the San Diego Zoo.

The mixed-species pairings create a more dynamic experience for the animals and provide constant enrichment through species interaction.

We're all familiar with the bald eagle, but the golden eagle is just as cool.

The older female kangaroo was starting to move slower than others kangaroos in her mob, so keepers did a scan and discovered she had injured her spine.

Watch as they dig in, roll around, and slide on the 18 tons of snow.

Target training is used to get the meerkats to stand on a scale so they can be weighed.

Cephalopods, a group that includes octopus and squid, are a bunch of aquatic oddballs with some really unique behaviors.

The Saint Louis Zoo is raising Ozark Hellbenders, which grow up to about two feet long, all the way from eggs until they are ready to be released into the wild.

The gopher tortoise, which is built for being on land, is considered a "keystone species."

See Monroe having the time of his life at his 2nd birthday party.. zipping around the grounds, eating popcorn, and wrestling with his buddy Frank.

Freedom and Liberty endured separate wing injuries in the wild. Due to not being able to be released following rehabilitation, they became ambassadors to help provide education on the species.

See Magica the sloth climb around as she's being trained to move through her enclosure and into her "taxi" for safe travel.

Watch as the younger leopard goes absolutely bonkers playing with a gourd.

The curious baby wallaby is ready to explore on his own after being in and out of his mother's pouch for more than half a year.

From a giant, edible "50" to various fruit snacks... see how the keepers helped him celebrate his big day.

The saying, "you are what you eat" is definitely true when it comes to the dung beetle.

When you live in San Diego, it's not every day that you get to see snow. Watch these polar bears bring out their playful side when they're in their natural element.