Grizzly bear having some fun rolling down a hill at Denali National Park in Alaska.

Cyclist stumbles upon a kangaroo zombie apocalypse while on a bike ride in Australia.

Cat named Philo tests out a brand new cat door his owner just installed.

Usain Bolt gets taken out by cameraman on Segway after winning gold medal.

Magician proposes to his girlfriend on stage with a magic trick.

Transformers Optimus Prime birthday cake that actually transforms.