The Oceans are Unexplored

In this eight-minute talk, marine biologist Dave Gallo talks about the world's oceans -- how vast they are, what's down there (that we know about), and why we should care. While it's a brief talk, there's a lot of great material here, including some discussion (and video) of the vampire squid, an octopod-looking guy nicknamed "Dumbo," and beautiful footage of extremophiles. According to Gallo, we've explored (meaning visited at all) about 5% of the ocean -- it is truly the final frontier.

This is one video from a new TED Education series -- for an intro to the series, check out this video featuring clips of Adam Savage.

(Via Explore.)