clicks are everywhere. It would be reasonable to hypothesize that what I am hearing is the whales busily hunting, rather than socializing. Since we can’t really see what they are doing underwater, however, we can only guess. What is fairly obvious is that this female is echolocating me heavily because she wants to keep an eye on me. Or perhaps more importantly, she is trying to alert the calf to my presence, as well as my position, so that it can avoid coming into contact with me. Then it strikes me. Echolocation is something that whales not only use for themselves, but something that they can
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