Massive Whale Pushes Diver, Then She Realizes It's Warning Her Of Danger

When whale biologist Nan Hauser, 63, went snorkeling with her team in the beautiful blue ocean, she had no idea just how close of an encounter she would have with a hungry predator. Nan knew not to panic, but when you're out in the middle of the ocean and the rest of your team is floating on a boat, you become a sitting duck. That is, until a giant creature came to her rescue.