Hybridization

A hybrid is the offspring of a cross between two genetically distinct species or populations.

Hybridization can lead to increased genetic diversity, increased fitness, or reduced fertility, but it does not typically lead to speciation.

Speciation is the process by which two species become so similar that they can no longer interbreed.

Hybridization can lead to increased genetic diversity, increased fitness, or increased resistance to disease, but it does not typically lead to reduced competition.

Introgression is the process by which genes from one species are transferred to another species through hybridization.

Hybridization can lead to loss of genetic diversity, reduced fitness, or increased susceptibility to disease, but it does not typically lead to outbreeding depression.

Outbreeding depression is the reduced fitness of hybrids compared to their parents.

The genetic distance between the parent species, the ecological similarity between the parent species, and the geographic isolation of the parent species can all influence the success of hybridization, but the hybridization history of the parent species is not typically a factor.

Convergence is the process by which two species become more similar over time due to hybridization.

Grizzly bears and polar bears, coyotes and wolves, and horses and donkeys are all examples of hybridization in the wild. Lions and tigers, however, are not known to hybridize in the wild.

Speciation is the process by which a hybrid population becomes reproductively isolated from its parent species.

Hybridization can lead to increased genetic diversity, increased fitness, or reduced fertility, but it does not typically lead to extinction.

Introgression is the process by which genes from a hybrid population are transferred back to one of its parent species.

The relative fitness of the hybrid population, the relative abundance of the parent species, and the geographic isolation of the hybrid population can all influence the direction of introgression, but the hybridization history of the parent species is not typically a factor.

Speciation is the process by which two species become so different that they can no longer interbreed.