A Single Mouthful - CITATION

The way blue whales eat may be one reason that they are so large  (Parry,  2010).

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Blue whales filter small fish called krill from the water as they fill their mouths with sea water. (Parry, 2010).

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According to  Shadwick (2015), “The  eating  efficiency  of  the  whales  is  the  most amazing in  the  animal  kingdom”  (as cited in Parry,  2010).

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According to Parry (2010), he states that “[Blue] whales may eat a huge quantity of food  in  a  single  mouthful, but the effort takes a lot of energy.” 

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To  calculate  how much  energy the whales  use when they dive, researchers  recorded  200  dives  between  2008  and  2016  (Parry,  2010). 

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Parry (2010)  explains  that  Goldenberg  made  use  of  recordings  of  whale   sounds  whilst  they  dived  through  the  water  so  that  he  could  measure  their  speed.

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Researchers  used  whale  bones  to  determine  how much water and food whales could hold in their mouths  (Parry, 2010).

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To  figure  out  the  number  of  calories  whales  get  from  each  mouthful,  the   researchers  calculated  both  the  density  of  their  food  source  and  the  volume  of   the whales’ mouths.

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Whales get up to  about 2 million  kilojoules, half a million calories, of  energy  from every mouthful of  food  (Parry,  2010). 

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 Reference:

Wynn Parry (2010, December 9). A single mouthful: Half a million calories. CBS News. 

                 Retrieved from  http://www.cbsnews.com/501465162   

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