Why are so many deep-sea animals red?❤️
Red is the first wavelength of color to be lost as light decreases with depth, so red things essentially disappear in the deep pelagic zone. Animals that are red, like this Periphyllopsis jelly, appear black and remain camouflaged from their predators and prey. The only light in the midnight zone is the bioluminescence, or “living light,” produced by the animals that live there. Most bioluminescence is usually blue or green. Red skin absorbs these wavelengths of light, keeping this crimson jelly and its ruby-colored relatives hidden from any lurking predators searching for their next meal.

















