In a river of northeastern Brazil, an “armored” creature with “large” eyes paused to rest against a rock. The maze-like ...

Observing animal behavior in a laboratory offers a controlled environment, but these model organisms can behave differently ...

A scary-looking creature with “devil” in its name was spotted close to the surface off Tenerife, a Spanish island.

WATCH the moment a terrifying Devil Fish that normally lurks 6,000ft down in total darkness is filmed for the first time near a holiday island. The ghoulish fish was spotted bobbing near the ...

"It is possible that prolonged thermal stress due to the ocean conditions is associated with the fish kill," Mr Harrison said. "Following the recent tropical cyclone, the marine heatwave strength ...

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 ...