High feeding costs limit dive time in the largest whales.

  title={High feeding costs limit dive time in the largest whales.},
  author={A Acevedo-Guti{\'e}rrez and Donald A. Croll and Bernie R Tershy},
  journal={The Journal of experimental biology},
  volume={205 Pt 12},
Large body size usually extends dive duration in air-breathing vertebrates. However, the two largest predators on earth, the blue whale (Balaenoptera musculus) and the fin whale (B. physalus), perform short dives for their size. Here, we test the hypothesis that the foraging behavior of these two species (lunge-feeding) is energetically expensive and limits their dive duration. We estimated the cost of lunge-feeding in both species using an approach that combined attaching time/depth recorders… CONTINUE READING
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