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Elephants can use their ears as threat displays in male-to-male competition. Sexual selection in mammals is a process the study of which started with Charles Darwin's observations concerning sexual selection, including sexual selection in humans, and in other mammals, [1] consisting of male–male competition and mate choice that mold the development of future phenotypes in a population for a ...
[12] [13] A male peafowl or peacock is a larger sized bird with an average bill to tail length of 100–120 cm (40–46 in) and as much as 200–230 cm (78–90 in) to the end of a fully grown train. It weighs 4.1–5.2 kg (9–11.5 lb) and is amongst the heaviest birds in Phasianidae .
The feathers coated with the preen oils look brighter and the degree to which the plumage was glossy was a way in which mates could determine the diet or overall health of the individual. The uropygial gland also can change the shape of the reflected light off the feathers, which alters what wavelengths of light are reflected.
Male peacocks can get aggressive during mating season and will be more territorial than usual. If you see a peacock in the wild and it appears to be aggressive, don't panic. Don't make any eye ...
In mature dogs, from the shoulder backwards and along the 'saddle', the hair is short and close. Hair long from the forehead backwards, with a distinct silky 'topknot'. "On the foreface hair short ...
Male peacock spider, Maratus volans, courtship display In some species, males will perform ritualized movements to attract females. The male six-plumed bird-of-paradise (Parotia lawesii) exemplifies male courtship display with its ritualized "ballerina dance" and unique occipital and breast feathers that serve to stimulate the female visual system. [7]
A peacock s struts across the street at the Auburn Creek Apartment complex in Lincoln on Dec. 18, 2003. The birds can be spotted on rooftops, in oak trees and on people’s balconies.
A peacock spreading his tail, displaying his plumage Peahen. Peafowl is a common name for two bird species of the genus Pavo and one species of the closely related genus Afropavo within the tribe Pavonini of the family Phasianidae (the pheasants and their allies). Male peafowl are referred to as peacocks, and female peafowl are referred to as ...