What adaptation have only toothed whales developed for prey detection?
a. Ability to generate internal body heat
b. Bradycardia
c. Advanced gas exchange system
d. Echolocation
ANS: D
Echolocation is the equivalent of biological sonar. Odontocetes generate clicks and sounds that bounce
off prey to be returned towards the whale. Information can be found in the section Marine Mammals
Include the Largest Animals Ever to Have Lived
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