In the vibrant world of aquatic life, some fish possess a remarkable ability: they can change color. This mesmerizing trait ...

color, and the size and placement of their spots. He began to see a strong correlation between where guppies lived in a particular stream and whether the fish were bright or drab. But what was ...

Any type of fish or crustacean will show up as a silhouette in the water, and these differ in shape and size depending on the ...