Among aquarium enthusiasts who keep bettas, it is usually the male fish that are known as the "colorful ones." Oftentimes the males are favored over the females not only for their color, but also ...

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 ...

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 ...

After scuba diving and shooting video at Tunnels Beach one day I had a tourist come up to me and say she saw a clownfish out on the reef while snorkeling. I responded back and said that we do not have ...

The fish may have evolved the ability to see in color at depth by using rod cells instead of cone cells to detect light. In the dim light of dusk, the world appears gray. That's because we, like most ...

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 ...

Deep-diving fish have a problem: The only light that penetrates their watery environment is blue and green — hardly enough of a palette for flashy color patterns. Now, a new study reveals these fishes ...

WASHINGTON (Reuters) - While people and other vertebrates are color blind in dim light, some deep-sea fish may possess keen color vision to thrive in the near total darkness of their extreme ...

DURHAM, N.C. -- A few years ago while on a fishing trip in the Florida Keys, biologist Lori Schweikert came face to face with an unusual quick-change act. She reeled in a pointy-snouted reef fish ...

While people and other vertebrates are color blind in dim light, some deep-sea fish may possess keen color vision to thrive in the near total darkness of their extreme environment thanks to a unique ...

New research reveals signs of highly sensitive color vision in fish that live in the abyss beyond sunlight's reach An international team of researchers discovered a previously unknown visual system ...

Despite the vast evolutionary gulf between humans and the three-spined stickleback fish, the two species have adopted a common genetic strategy to acquire the skin pigmentation that helps each species ...