Sixty percent of the Earth is covered by oceans. That makes sea water the largest of all Earth’s habitats. Watch this video clip for a look at its beauty, and some of its extraordinary creatures.
You won't believe the size of the teeth on some of the fish! And if you think there is no color in the ocean's depths ... think again!
Clip from The Blue Planet, narrated by David Attenborough.
Clip from The Blue Planet, courtesy BBC Worldwide channel at YouTube. Copyright, BBC, all rights reserved. Clip provided here as fair use for educational purposes and to acquaint new viewers with the series.