Watch YouTube videos! This playlist is all about dolphins. (ad) Buy the Almanac! Get your hands on a copy. Watch YouTube videos! This playlist is all about creatures that live in the deep sea. Check it out. Oceans Portal See what's in the sea! SEA STAR They have amazing stomachs! GIANT SQUID They're rarely seen by humans. Narwhal Their tusks are a mystery. Watch on YouTube! Play all the videos! Watch Nat Geo Kids TV! Get a sneak peek of the shows. Watch this weekend! Check out Weird But True! on TV. Watch on Roku! Play all the videos!