Female moles evolved to have high testosterone levels, making them fiercer diggers and mothers. Female hyenas share this trait, but it means they must give birth through a male-like phallus.
A global research effort is targeting inherited disorders in dogs.
African lions were initially thought to belong to a single subspecies but new research shows that there is more diversity on the African continent.
Red deer on the Scottish isles have the same DNA as their ancient ancestors – scientists are now uncovering how they got there in the first place.
Conservationists are increasingly looking to translocating rhinos. This not only ensures their safety but also enables improvements to their genetic health.