Answer:
In interspecific crosses, male and female animals
of two different related species are mated. In some cases, the progeny may
combine desirable features of both the parents and may be of considerable
economic value, e.g., the mule.
An
interspecific hybrid's fertility varies. Many of Panthera (ligers,
tigonsieopons etc.) hybrid males are infertile, while the female counterparts
can breed with the species she contains(female ligers can breed with a lion or
a tiger to produce li-ligers or ti-tigers)these are rare in nature.
Intergeneric hybridization is the
crossing of two different animals/plants of different genus. It is almost
unknown in nature .Intergeneric hybrids more or less never form complete
zygotes/embryos. These are sterile/infertile.
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