We keep fish as pets because they’re colorful and relatively easy to care for. But did you know that most fish change color as they grow older? They also change color as a survival tactic ...

Some are colorful, and others are stone-gray. You can easily pick out a discus by identifying the following traits. Color. Discus fish are often categorized as blue, red, and green species.

Why do our reef fish change color so often when they grow from a baby to adult? This mystery is just now being solved because there are so many people out in the water with cameras to document the ...

Researchers found two new species of colorful killfish in temporary pools in Brazil, according to a new study. Yuri Abrantes A flash of color and iridescence ... about 60 fish, the team of experts ...