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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 ...
Examples of mixed-species groups include wildebeests forming groups with zebras, [3] and different species of birds that form large foraging flocks. [4] Group living may sometimes be confused with collective animal behavior. Collective animal behavior is the study of how the interactions between individuals of a group give rise to group level ...
The peacock bass and largemouth bass are excellent examples. The two fishes are not related, yet are very similar. Peacock bass are native of South America and is a Cichla. While largemouth bass are native to Southern USA states and is a sunfish. [119] others will surely be described (but see the results based on DNA data [120]).
The Eurasian badger (Meles meles) is an example of a species that incur a cost of group living on the successful reproductive rates. Females present in larger groups of badgers have an increased reproductive failure rate compared to solitary badgers. This is a result of increased reproductive competition within the female individuals in the group.
In some species, the males at the leks show a high degree of relatedness, but this does not apply as a rule to lek-forming species in general. [58] [59] [60] In a few species such as peacocks and black grouse, leks are composed of brothers and half-brothers. The lower-ranking males gain some fitness benefit by passing their genes on through ...
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Why do sharks attack humans? According to the Shark Research Institute, there are over 400 plus species of shark around the world, which include great white sharks, tiger sharks and bull sharks.