Many animals are countershaded, which means that their dorsal sides are darker than their ventral sides. The colour sample happens in animals terrestrial and aquatic alike and is among the most typical camouflage patterns within the animal kingdom (it was even current in dinosaurs). Within the case of rock-hopping ibexes, countershading permits the tawny creatures to mix in with the rusty mountain slopes they inhabit.
Nice white sharks developed the identical technique. Seen from above, they mix in with the darkish depths of the ocean; from under, their mild undersides mix in with the daylight shining by way of the water’s floor.