esearch team finds wild medaka engage in surprisingly active nocturnal behavior in their natural river environment.

CHICAGO (AP) — Charlie Jacobsma slapped the surface of a pool enclosure at Chicago’s Shedd Aquarium and scanned the water for movement. Moments later, the head of a beluga calf emerged, mouth agape in ...

A fisherman made a “once in a lifetime” catch — to the delight of a North Carolina charter boat captain. “I have tried many ...

A new study led by UC Santa Cruz marine biologist Roxanne Beltran to be published as the February 14 cover story for Science ...

You may have a fear in common with many first-time saltwater aquarists. You’re worried about going to bed at night with a ...

Deep below the surface of a river in northern Brazil, a “shy” creature tucked its “armored” body into a rocky crevice. Divers ...

South Florida has a climate perfect for warmwater fish and reptiles. Finding temperatures to their liking, it’s no surprise that so many exotic species have proliferated. Burmese pythons are ...

Wild-caught cichlids were acquired from Old World Exotic Fish Inc in 2022 and Cichlidenstadel in 2024. Lab-reared species were purchased from Southeast Cichlids, Old World Exotic Fish Inc., and ...

3D-printed shell halves allowed researchers to peek inside the cichlid's home and observe the behavior of the mother and her fry during brood care.

A solitary sunfish at an aquarium in southwestern Japan lost its appetite, began banging into the side of the fish tank and appeared unwell days after the facility closed last month for renovations.

(Kaikyokan via AP) TOKYO (AP) — A solitary sunfish at an aquarium in southwestern Japan lost its appetite, began banging into the side of the fish tank and appeared unwell days after the facility ...

When the sunfish began looking unwell days after the aquarium closed on December 1 for a six-month renovation, its keepers suspected digestive problems, gave it less food and visited the fish tank ...