Killer Whales and Sonar Tracking - BBC
Once upon a time, the killer whales out-fished the fishermen. With the advent of sonar, the tables were turned but now interesting developments are afoot. Visit http://www.bbcearth.com for all the latest animal news and wildlife videos and watch more high quality videos on the new BBC Earth YouTube channel here: http://www.youtube.com/bbcearth
登録:2011/11/09 10:49:32
再生:4 コメント:0
この動画の配信元サイト: youtube.com
登録ソース:
Flash版プレイヤはこちら旧プレイヤで再生