Climber cub
© Sharon Haeger/Shutterstock
The most famous tree-climbing lions live in Uganda, but it seems this intrepid cub is looking to bring the pastime to Zambia. Though as adults they'll be fearsome hunters, lion cubs are prime targets for other predators like hyenas and leopards. So when it comes to finding safe hiding spots, whether up on a tree limb or burrowed in the bushes, the craftier the cub the better. After all, though their mothers (and other lionesses in the pride) care for them until about age 2, young cubs are often left unattended for a full day at a time as their parental figures go out on the prowl.