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 the reduced survival and fertility of offspring of related individuals. Large effects are documented in wild animal and plant populations, as well as in humans. Intercrossing ...

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This article was originally published on Sept. 3, 2019. Inbreeding, or mating between two closely-related people, is a strong taboo across the world. There’s good reason for this, of course. The ...