(Phys.org) —Mating with relatives, or inbreeding, can be costly to both sexes, and in many species males and females avoid mating with siblings. However, the latest research adds a twist to this story ...

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 ...

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The small size and isolation of the endangered population of Southern Resident killer whales in the Pacific Northwest have led to high levels of inbreeding. This inbreeding has contributed to their ...

Increasing levels of inbreeding is a threat against the viability of the Scandinavian wolf population. A study just coming out in the new journal PLoS ONE now demonstrates that inbreeding is not ...