Why Jellyfish Float Like a Butterfly And Sting Like a Bee, Deep Look

Jellyfish dont have a heart, or blood, or even a brain. Theyve survived five mass extinctions. And you can find them in every ocean, from pole to pole. Whats their secret Keeping it simple, but with a few dangerous tricks. DEEP LOOK: a new ultraHD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Get a new perspective on our place in the universe and meet extraordinary new friends. Explore big scientific my