Males with genetically-related parents have been found to have sperm that fertilise fewer eggs when compared with non-inbred males, according to a latest research.
Inbreeding is the reproduction from the mating of two genetically-related parents, which can increase the chances of offspring being affected by recessive or deleterious traits.
Research into the breeding habits of the red flour beetle shows that the reduced fitness of inbred beetles, known as 'inbreeding depression', reveals itself in competitive scenarios.
Inbreeding is a potentially important problem in declining species across the world, and conserving genetic variation is now recognised as a priority by the International Union for Conservation of Nature.
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