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Male ligers are consequently sterile, while female ligers are not. Ligers and tigons were long thought to be totally sterile. However, in 1943, a fifteen-year-old hybrid between a lion and an island tiger was successfully mated with a lion at the Munich Hellabrunn Zoo. The female cub, though of delicate health, was raised to adulthood. [27]
The liliger is the hybrid offspring of a male lion (Panthera leo) and a female liger (Panthera leo♂ × Panthera tigris♀). Thus, it is a second generation hybrid. In accordance with Haldane's rule, male tigons and ligers are sterile, but female ligers and tigons can produce cubs.
Panthera hybrids are typically given a portmanteau name, varying by which species is the sire (male parent) and which is the dam (female parent). For example, a hybrid between a lion and a tigress is a liger, because the lion is the male parent and the tigress is the female parent.
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In both ligers and tigons, the females are fertile and the males are sterile. [12] One of these hybrids (the tigon) carries growth-inhibitor genes from both parents and thus is smaller than either parent species [12] and might in the wild come into competition with smaller carnivores, e.g. the leopard.
Taliger at the G. W. Zoo, pictured in 2013. Situated on 16 acres (6.5 ha), the Greater Wynnewood Exotic Animal Park began as a shelter for endangered and exotic species of animals, and was home to over fifty species of animals and 200 big cats, such as tigers, lions, pumas, ligers and tigons.
Ligers and tigons (crosses between a lion and a tiger) and other Panthera hybrids such as the lijagulep. Species P. tigris. A hybrid between a Bengal tiger and a Siberian tiger is an example of an intra-specific hybrid. Family Canidae. Fertile canid hybrids occur between coyotes, wolves, dingoes, jackals and domestic dogs.
Hybrid incompatibility occurs when the offspring of two closely related species are not viable or suffer from infertility. Charles Darwin posited that hybrid incompatibility is not a product of natural selection, stating that the phenomenon is an outcome of the hybridizing species diverging, rather than something that is directly acted upon by selective pressures. [4]