The results of inbreeding can be very distressing to witness. In this Instagram post, we see a captive lion with skull ...

Female extra-pair reproduction in socially monogamous systems is predicted to cause cuckolded socially-paired males to conditionally reduce paternal care, causing selection against extra-pair ...

1 Male steriles (MS) must have a fitness advantage relative to hermaphrodites (H) if they are to be maintained in gynodioecious species. We report experiments in which we disentangle the relative ...

Little is known about the effects of inbreeding on reproduction in modern human societies. It appears indeed that biological effects are hidden by socioeconomic factors, which are the major ...

Some mountain gorilla females linger into adulthood in the group into which they were born. In the process, they also remain in the company of their father, who is often their group's dominant male.

Pure-bred dogs have been regarded as superior to crossbreeds or what some people refer to as mutts. However, we now ...

Ant queens stay close to home in their hunt for a mate and as a result produce thousands of inbred offspring, a study led by a University of Exeter biologist has found. The research, published this ...

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 ...

The killer whales that summer in Puget Sound have been breeding within their own family groups, raising concerns among scientists that the region’s troubled orca population actually may be more ...

Generally speaking, inbreeding is a bad thing. To be clear, I am not making cultural commentary regarding the social taboo of sleeping with your cousin. I am saying that literally inbreeding is not ...