When Lorian E. Schweikert, Ph.D., reeled in a hogfish on a fishing trip to the Florida Keys, she noticed something strange after setting it down on the deck of the boat. Hogfish are known for their ...

Fish evolution is so strange that it's given us species that can count, change color by "seeing" with its skin and even fish that can "sing." But sea robins in the family Triglidae are some of the ...

Fish are aquatic, gill-bearing, cold-blooded vertebrates with fins and tails for swimming and covered in scales. Recently, a ...

For more than a century, biology textbooks have stated that vision among vertebrates – people included – is built from two clearly defined cell types: rods for processing dim light and cones for ...