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  2. Hybrid incompatibility - Wikipedia

    en.wikipedia.org/wiki/Hybrid_incompatibility

    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]

  3. Hybrid speciation - Wikipedia

    en.wikipedia.org/wiki/Hybrid_speciation

    This will allow any present hybrid population to move into new, unoccupied habitats, avoiding direct competition with parent species and giving a hybrid population time and space to establish. [15] [5] Genetics, too, can occasionally favor hybrids. In the Amboseli National Park in Kenya, yellow baboons and anubis baboons regularly interbreed ...

  4. List of genetic hybrids - Wikipedia

    en.wikipedia.org/wiki/List_of_genetic_hybrids

    This is a list of genetic hybrids which is limited to well documented cases of animals of differing species able to create hybrid offspring which may or may not be infertile. Hybrids should not be confused with genetic chimeras , such as that between sheep and goat known as the geep .

  5. Hybrid (biology) - Wikipedia

    en.wikipedia.org/wiki/Hybrid_(biology)

    A mule is a sterile hybrid of a male donkey and a female horse.Mules are smaller than horses but stronger than donkeys, making them useful as pack animals.. In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different varieties, subspecies, species or genera through sexual reproduction.

  6. Speciation - Wikipedia

    en.wikipedia.org/wiki/Speciation

    Conversely, if the hybrid offspring are more fit than their ancestors, then the populations will merge back into the same species within the area they are in contact. [ citation needed ] Another important theoretical mechanism is the arise of intrinsic genetic incompatibilities, addressed in the Bateson-Dobzhansky-Muller model . [ 49 ]

  7. Reproductive isolation - Wikipedia

    en.wikipedia.org/wiki/Reproductive_isolation

    In the hybrids, specific gene products contributed by one of the parents may be inappropriately recognized as foreign and pathogenic, and thus trigger pervasive cell death throughout the plant. [68] In at least one case, a pathogen receptor, encoded by the most variable gene family in plants, was identified as being responsible for hybrid necrosis.

  8. Alien-human hybrids are unlikely but not impossible ... - AOL

    www.aol.com/alien-human-hybrids-unlikely-not...

    Human-alien hybrids fill science fiction stories, and the most famous of these is Mr. Spock from Star Trek — the logical science officer of the starship Enterprise. Does this mean that it will ...

  9. Reinforcement (speciation) - Wikipedia

    en.wikipedia.org/wiki/Reinforcement_(speciation)

    The two populations fuse back into one species 2. Speciation by reinforcement 3. Two separated populations stay genetically distinct while hybrid swarms form in the zone of contact 4. Genome recombination results in speciation of the two populations, with an additional hybrid species. All three species are separated by intrinsic reproductive ...