The creatures cruised the world’s oceans with features we often associate with marine mammals, such as coats of blubber and ...

Color is important to fish. It’s used for camouflage, mate selection and defense. While easily seen in tropical aquarium fish ...

An impressive fin whale was seen on Monday morning. The video vividly captures the fin whale’s enormous size and elegant ...

Fossils can tell scientists what extinct animals looked like and what their environment was like. But what about their diet?

This coloring is known as countershading, and it makes Pacific herring harder to see from above or below. Countershading helps the herring camouflage itself from potential predators, which include ...

Readers explain that this colouration pattern in many living things is all about camouflage, while its opposite tends to ...

These intimidating but misunderstood creatures have been frequenting shallow waters at a much higher rate in recent years.

brocksi had a slender body, similar to modern-day smelts. The fish also presented evidence of countershading, in which the animal was darker on the top and lighter on its stomach, with two stripes ...