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 ...

Unique creatures, odd animals and new species are discovered across the planet. Some are found lurking in remote corners of ...

On Thursday, the Aquarium of the Pacific released its first Marine Species Report Card, detailing the population trends of 30 ...

We’ve come out of our shell to help you find the best turtle tanks. And by tanks, we mean aquarium tanks, not armored war machines… your turtle does not need a battle tank, they already have their own ...

The rescue team donned waders and marched into a murky Malibu lagoon scorched by the Palisades fire. Their mission: Save the lives of northern tidewater gobies, a tiny endangered fish. The destructive ...

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 ...

Likewise, the Kaikyokan Aquarium’s listless fish has long been the sole occupant of its tank. But what sets sunfish apart from many other solitary creatures is that they are often stimulated by ...

The fish became unwell when the Kaikyokan aquarium where it lives in Shimonoseki, southern Japan, was temporarily closed for renovations in December. It refused to tuck into its usual jellyfish ...

How do you perk up a lonely fish? This may sound like the start of a particularly silly joke, but it was a very real challenge faced by staff at a Japanese aquarium when they noticed their sunfish ...