Sea Bear Ancestors?: Seals, Invaders of the Sea: BBC
Seals as they appear today have adapted to their watery habitat in a much more efficient and successful way than their sea bear ancestors. Visit http://www.bbcearth.com for all the latest animal news and wildlife videos BBC Earth Facebook http://www.facebook.com/bbcearth (ex-UK only) BBC Earth Twitter http://www.twitter.com/bbcearth Subscribe to BBC Earth: http://bit.ly/ydxvrP BBC Earth Chan ...
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