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A 2020 genetic study has shown that the American robin is closest to the rufous-collared thrush (T. rufitorques) of Central America, [8] confirming a 2007 study which also placed this as its closest relative. [9] Though having distinct plumage, the two species are similar in vocalization and behavior. [10]
Many animal species have specific mating (or breeding) periods e.g. (seasonal breeding) so that offspring are born or hatch at an optimal time. In marine species with limited mobility and external fertilisation like corals , sea urchins and clams , the timing of the common spawning is the only externally visible form of sexual behaviour.
Before and after social pairing and mating occurs, bird song is mainly dedicated to territorial defense. This behavior is a sexually selected trait because it ensures defense of the female who is rearing her offspring. [9] There is also some evidence that vocal amplitude effects male-male competition in such species as the great tit. Most ...
This behavior also occurs in hamadryas baboons (Papio hamadryas), where the leader males practice intensive mate guarding. [26] In Drosophila montana, studies have shown that following mate guarding, the chances of a female mating with or being inseminated by another male were greatly diminished. This shows that the mate guarding tactic can be ...
A courtship display is a set of display behaviors in which an animal, usually a male, attempts to attract a mate; the mate exercises choice, so sexual selection acts on the display. These behaviors often include ritualized movement ("dances"), vocalizations, mechanical sound production, or displays of beauty, strength, or agonistic ability.
According to Bagemihl, animal sexual behavior takes many different forms, even within the same species and the motivations for and implications of their behaviors have yet to be fully understood. Bagemihl's research shows that homosexual behavior, not necessarily sex , has been documented in about 500 species as of 1999, ranging from primates ...
The behavior is similar to a “cloacal kiss,” a way of mating used by many birds. ... The information on bat mating behavior could help with efforts to come up with a way to artificially ...
The Indian robin (Copsychus fulicatus) [note 1] is a species of passarine bird in the family Muscicapidae. It is widespread in the Indian subcontinent and ranges across Bangladesh , Bhutan , India , Nepal , Pakistan and Sri Lanka .