It’s a combination of two distinct pigments: one red (hipposudoric acid) and one orange (norhipposudoric acid). These pigments absorb ultraviolet light, preventing damaging rays from penetrating the hippo’s skin. Moreover, this secretion is both antibacterial and antifungal, providing an all-...
Ultraviolet (also called UV) is between visible light and X-rays in the electromagnetic spectrum ... The wavelength range is about 380 nanometers (380 billionths of a meter) to 10