What they discovered was that not only fish, but spiders and many insects can taste their food by the structures that are most likely to first come in contact with the food. And this in many invertebrate species turns out to be the feet.
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About Karen Shanor, Bats Sing, Mice Giggle: The Surprising Science of Animals' Inner Lives
Karen Shanor, Bats Sing, Mice Giggle: The Surprising Science of Animals' Inner Lives.