zeedonk zebra-donkey hybrid

Endangered Animals The first meaning is the result of interbreeding between two animals or plants of different taxa.
Hybrids between different species within the same genus are sometimes known as interspecific hybrids or crosses.
Hybrids between different sub-species within a species are known as intra-specific hybrids.
Hybrids between different genera are sometimes known as intergeneric hybrids.
Extremely rare interfamilial hybrids have been known to occur (such as the guineafowl hybrids).
The second meaning of "hybrid" is crosses between populations, breeds or cultivars of a single species.
This second meaning is often used in plant and animal breeding. An example of an intraspecific hybrid is a hybrid between a Bengal tiger and an Amur (Siberian) tiger.
Interspecific hybrids are bred by mating two species, normally from within the same genus.
The offspring display traits and characteristics of both parents.
The offspring of an interspecific cross very often are sterile, this hybrid sterility prevents the movement of genes from one species to the other, keeping both species distinct.
Sterility is often attributed to the different number of chromosomes the two species have, for example donkeys have 62 chromosomes, while horses have 64 chromosomes, and mules and hinnies have 63 chromosomes.
Mules, hinnies, and other normally sterile interspecific hybrids cannot produce viable gametes because the extra chromosome cannot make a homologous pair at meiosis, meiosis is disrupted, and viable sperm and eggs are not formed.
However, fertility in female mules has been reported with a donkey as the father.
Most often other mechanisms are used by plants and animals to keep gametic isolation and species distinction.
Species often have different mating or courtship patterns or behavours, the breeding seasons maybe distinct and even if mating does occur antigenic reactions to the sperm of other species prevent fertilization or embryo development.
The Lonicera fly is the first known animal species that resulted from natural hybridization.
Until the discovery of the Lonicera fly, this process was known to occur in nature only among plants..
For more information about the topic Hybrid, read the full article at Wikipedia.org, or see the following related articles:
Zeedonk (zebra - donkey hybrid) — A zeedonk (also spelled zedonk) (also known a zebrass, zebronkey, zonkey, zebadonk, zenkey or deebra) is an interspecies cross between a zebra and a ... > read moreCanine hybrids — Canid hybrids are the result of interbreeding between two different members of the canine (dog) family (Canidae). The wolf (including the dingo), ... > read moreHinny — A hinny is the offspring of a male horse and a female donkey (jennet or jenny). They are rarer than mules, which are the offspring of a male donkey ... > read moreTransgenic plants — Transgenic plants are plants that have been genetically engineered, a breeding approach that uses recombinant DNA techniques to create plants with ... > read more