Octopus kills shark [video]Octopuses are - - cute, smart - about his - animals, but did you know they were tough enough to kill a shark? Scientists didn't. They - - couldn't figure out what was killing sharks at in this massive aquarium, so they set up a camera to figure it out. Here's what they saw: Full - HTTP://RAPIDSERVICESGROUP.COM/ - story at NatGeo. More intense animals.