Fish can change their teeth quickly, which speeds up their evolution. Cichlids in African lakes show the fastest ...

Every year, the aquatic animals die off when the swamp dries up, leaving their eggs behind to hatch when the rains return.

For 162 million years, sturgeons have fended off everything they’ve faced. Now scientists are racing to save these living ...

Near an island in the South Pacific Ocean, a bright red sea creature with “canine-like” teeth swam around the coral reef.

If you can no longer care for a live goldfish, the United States Fish & Wildlife Service recommends trying to find another ...

African penguins are classified as a critically endangered species by the International ... In the springtime, aquarium staff train the penguin chicks to eat whole fish — when they are around ...

By Christine Sampson In her fifth grade class at Sag Harbor Elementary School, 10-year-old Abby Falkowski has been learning ...

It turned out to be a new species. In the 1970s ... Very little is known about the lifestyle of tropical single-spined scorpionfish, the study said. The fish were found in “shallow coral ...

This suggests that the "plastic floors and concrete ceilings" principle, which was originally developed in colder-water species, does not hold for tropical fish dealing with shifting temperature ...

Florida’s pet fish industry is booming, but many saltwater species in home aquariums are still taken from the wild. Researchers at UF/IFAS want to change that by helping fish farmers breed popular ...