Like doghouses and litter boxes, aquariums are a fixture in many homes. An estimated 1 in 8 American households keeps fish as pets, and over 158 million fish live in captivity in the U.S. It’s not ...

Catfish are extraordinary creatures with distinctive whiskers, also called barbels, and they aren’t the only fish with them. Several fish species have barbels, which are sensory organs. Fish use them ...