Friday, December 10, 2010
Blue Whales Have A Very Efficient Feeding Style
The Blue whale feeds on huge swarms of krill in the water column, netting more than 100 times the energy than researched expected them to. The whales dive up to 500 meters deep to find the large concentrations of krill. Diving below the krill, they lung upwards with mouths wide open, catching many many krill in the process. The whale then filters out the water through baleen, trapping the krill in the whales mouth.
The exact kilojoules of energy spent vs kilojoules of energy gained is in the link below.