Design in nature : The twilight zone

Creatures residing in the depths of the seas often display a nearly transparent and gelatinous appearance, or with shades of red or black, primarily for the purpose of camouflage. Their transparency serves as a valuable adaptation, providing camouflage against potential threats, including bioluminescent predators. The rationale behind the prevalence of black and red hues lies in the science of wavelengths. Sunlight encompasses the entire visible spectrum, with the combined colors appearing white. Red light, possessing the longest wavelength and the least energy in the visible spectrum, plays a crucial role. As light wavelengths decrease from red to blue, so does their ability to penetrate water. Blue light is most effective, followed by green, yellow, orange, and red light. Red light, with its longer wavelength, is swiftly filtered out as depth increases, and it rarely reaches the profound depths of the ocean. Black serves as effective camouflage in environments devoid of visible light, while red appears black. <a href="https://medium.com/@swastijoshi6991/design-in-nature-the-twilight-zone-6dedd5a699e9">Visit Now</a>