The study animal of choice for taste researchers is the catfish,* simply because it has so many receptors. They are all over its skin. "Catfish are basically swimming tongues," says Rawson. It is a useful adaptation for a limbless creature that locates food by brushing up against it; many catfish species feed by scavenging debris on the bottom of rivers.
( Mary Roach )
[ Gulp: Adventures on the ]
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