Watch all the creative ways keepers sneak medicine to animals at Utah's Hogle Zoo.

Making sure animals stay healthy is a top priority at Utah's Hogle Zoo. Sometimes, that can be a real challenge.

See why he's so popular with the ladies.

How do you train a lion? Very carefully.

Meet San Diego Zoo’s mountain lion siblings and learn why the big cat is known as a puma, cougar, and ghost cat, among other names.

Hand raised cub Nyack had a rough start, but has since been nursed back to health. See how his handlers at the San Diego Zoo have integrated him into the pride to help socialize him.

Lions are the only social cat, living in a pride. But in the wild, females go off and have their cubs and bring them back to meet the pride when they're old enough.

Did you know lions can sleep about 20 hours a day?

Meet San Diego Zoo’s mountain lion siblings and learn why the big cat is known as a puma, cougar, ghost cat and other names.

Plus, meet a pair of mountain lions named Koya and Kima who were orphaned in the wild.

Making sure animals stay healthy is a top priority at Utah's Hogle Zoo. Sometimes, that can be a real challenge.

Meet San Diego Zoo’s mountain lion siblings and learn why the big cat is known as a puma, cougar, ghost cat and other names.

How do you train a lion? Very carefully.

Meet the members of this pride and learn all about lions.

Hand raised cub Nyack had a rough start, but has since been nursed back to health. See how his handlers at the San Diego Zoo have integrated him into the pride to help socialize him.

See why he's so popular with the ladies.

Making sure animals stay healthy is a top priority at Utah's Hogle Zoo. Sometimes, that can be a real challenge.

Today is their first day out on exhibit, and they have a lot of exploring to do.

Now that they've outgrown the nursery, Ken and Dixie get to play with all of the enrichment items the zookeepers left out in the exhibit.

Hand raised cub Nyack had a rough start, but has since been nursed back to health. See how his handlers at the San Diego Zoo have integrated him into the pride to help socialize him.

Lions are the only social cat, living in a pride. But in the wild, females go off and have their cubs and bring them back to meet the pride when they're old enough.

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

Watch all the creative ways keepers sneak medicine to animals at Utah's Hogle Zoo.

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