One wonders, is it possible that a number of other species of shark could convert to “walking” if they had to? That is, they don’t need to evolve the trait from scratch; they need the circumstances that makes it a useful behavior.
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One wonders, is it possible that a number of other species of shark could convert to “walking” if they had to? That is, they don’t need to evolve the trait from scratch; they need the circumstances that makes it a useful behavior.