Signalling (Selection)

In nature living beings have applied color for signalling to other species for their sexual selection

Peacock displays to a Peahen	Evolution of red skin and hair through sexual selection	Poison Frog’s Selection
Plate 4 Color for Selection

The natural selection results from the struggle to survive, sexual selection emerges from the struggle to reproduce. The above examples (plate4) are displaying the colors that help the animals for their sexual selection within the species.

Physical Protection

Peacock displays to a Peahen	Evolution of red skin and hair through sexual selection	Poison Frog’s Selection
Plate 5 Color for Selection

Dark colors confuse other predators and also protects from sun-burn. Man has cued the same for their protection. Zebra’s bold color stripes (plate 5) help them to confuse lions in nature. Human beings have applied the same technique for their protection in war.