Question

why bulls are attracted to red colour only ?​

Answer 1

Answer:

Surprisingly, bulls are colorblind to red. The true reason bulls get irritated in a bullfight is because of the movements of the muleta. Bulls, including other cattle, are dichromat, which means they can only perceive two color pigments. Humans, on the contrary, can perceive three color pigments: red, green, and blue.

Answer 2

Explanation:

Bulls, along with all other cattle, are color-blind to red. Thus, the bull is likely irritated not by the muleta's color, but by the cape's movement as the matador whips it around. In support of this is the fact that a bull charges the matador's other cape — the larger capote — with equal fury.