Inbreeding is commonly associated with reductions in fitness 1,2,3,4,5,6, yet reported effects vary. Several studies of birds, for example, have shown strong inbreeding depression on hatching success ...

Inbreeding depression is defined as reduced fitness or performance arising from increasing homozygosity of progenies due to successive inbreeding, whereas heterosis refers to the superiority of a ...

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A new genetic analysis of Southern Resident killer whales found that two male whales fathered more than half of the calves born since 1990 that scientists have samples from, a sign of inbreeding in ...

Biologists have long known that inbreeding can be detrimental. Inbreeding results in less genetic variation, making species more vulnerable if changes occur that require them to adapt. Now we know ...