Too cool: scuba diving with hammer head sharks in Isla de Coco. Found at Spike.

Jumbo squid up to two metres long have invaded waters off the central coast of California and are devouring local fish populations. Found at YouTube from newscientistvideo.

Dude, you might wanna sorta pay more attention to your surroundings! Found at LiveLeak.

Found at HolyKaw!

Paul Nicklen describes his most amazing experience as a National Geographic photographer – coming face-to-face with one of the arctic’s most vicious predators. Found at YouTube from NationalGeographic.

The Bloodybelly comb jellyfish is one of the strangest creatures you’ll likely ever see. Found at YouTube from MontereyBayAquarium via Guy Kawasaki.

Looks like fun! There is no sound on this video. Found at YouTube from countrysidecouncil.

Found at YouTube from BBCWorldwide: “Watch this amazing footage as Steve Leonard gets up close and personal with a giant octopus in the freezing sea waters. Would you be happy to get this close to an Extreme Animal with giant eys and pale blue blood? Find out now as you take a dive into this [...]