00491 Full Breach
Nobody is positive why whales breach, but there are many theories, most of which have been backed up by observations. Whales breach to communicate (it's a very loud splash), to protect their young (a mother whale was once seen to breach across the back of an attacking shark), to stun schools of fish at the surface, to help settle their gut after eating a ton of small fish, to enable safe breathing on choppy days, and for many other reasons. My favorite reason that a whale would leap out of its known existence and into our world above the waves is because it can. It's gotta be fun.