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The term "maneless lion" or "scanty mane lion" often refers to a male lion without a mane, or with a weak one. [1] [2] The purpose of the mane is thought to signal the fitness of males to females. Experts disagree as to whether or not the mane defends the male lion's throat in confrontations. [3] [4] [5] [6]
Lions live in a social group known as a pride that consists of 2–18 females and 1–7 males. The females found in these prides were born into the pride. The males enter the pride from other prides. The success of reproduction for each individual lion is dependent on the number of male lions found in their social group.
Dominance hierarchies do not appear to exist among individuals of either sex in a pride. [113] Asiatic lion prides differ in group composition. Male Asiatic lions are solitary or associate with up to three males, forming a loose pride while females associate with up to 12 other females, forming a stronger pride together with their cubs.
Lions provide an interesting case of mutualism. Male lions cannot afford not to cooperate with one another. Single male lions cannot successfully defend and maintain access to a females against invading coalitions of males, which can invade the pride and force the single male to retreat. [7]
Infanticide not only reduces intraspecific competition between the incumbent's offspring and those of other males but also increases the parental investment afforded to their own young, and allows females to become fertile faster. [12] This is because females of this species, as well as many other mammals, do not ovulate during lactation. It ...
Both male and female reindeer grow antlers. This is a trait that no other species in the deer family possesses. The reason, a peculiar result of circumstances and biological luck, reflects how ...
Male waterfowl have developed another modification; while most male birds have no external genitalia, male waterfowl (Aves: Anatidae) have a phallus (length 1.5–4.0 centimetres [0.59–1.57 in]). Most birds mate with the males balancing on top of the females and touching cloacas in a “cloacal kiss”; this makes forceful insemination very ...
The actors, musicians, and reality stars listed below have opened up about being nonbinary, embracing fluidity, or, to put it most broadly, not feeling comfortable within either a "male" or ...