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 ...

Illustration of the silver spinyfin (Diretmus argenteus)—the vertebrate with the highest number of opsin genes. Image: (Alexandra Viertler, University of Basel) A newly discovered visual system in ...

Every summer, many rivers across Alaska appear as if they have caught fire. The water turns a deep, almost impossible red as if someone spilled paint across the current.

A team of researchers has provided the first example of how color patterns on a coral reef fish species can drive its evolution into many distinct species. The researchers looked at feeding and mating ...

Step inside a fish farm where bettas are not just surviving, but thriving. From vibrant colors to impressive numbers, the ...

DEAR NOLA’S MOM: These peppy little fish, also known as Siamese fighting fish are customarily kept as solo pets. The main colors include: blue, red, turquoise, yellow, white and orange — and there are ...

Aggressive little male fish from Indonesia turn black when angry to show their dominance, scientists discover. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...