In the vibrant world of aquatic life, some fish possess a remarkable ability: they can change color. This mesmerizing trait serves various purposes, from camouflage and communication to courtship ...

The wrasse has thick, full lips and a forehead hump that becomes more prominent as the fish ages. Changing in color throughout their lifetimes, males range from bright electric blue, green, or ...

We see color because photoreceptor cones in our eyes detect light waves corresponding to red, green, and blue, while dimness or brightness is detected by photoreceptor rods. Many non-mammalian ...