Upon noticing a squirrel helplessly floating in the water of a swimming pool, Arizona resident Rick Gruber immediately went in to rescue and perform CPR on the little guy, ultimately saving his life before he scurried into the desert.

OK Go, the uncontested maestros of viral music videos, has returned with a brand new eye-candy for their latest single "The Writing's On the Wall," infusing the group's signature one-take videography with an arsenal of colorful contraptions and some really cool optical illusions.

One of the most horrifying clown pranksters ever to come out of YouTube is back with more hidden-camera antics that will send chills down your spine.

It looked like online pranksters Viral Brothers had a truce, but when one of the brothers tried to prank his girlfriend, he found out she and his brother were in on a prank of their own

In this incredible (unverified) footage caught on camera, a man dives off a rock ledge into waters at the famous Manly's Jump Rock in Sydney Harbor, only to find a lonely Great White Shark lurking only a few feet beneath the surface. What do you think? Is this real or fake?