A biologist has shown that bastard doves can fend for themselves. Despite having a strange coo, hybrid offspring are still able to defend their territory. This is necessary for further reproduction.

In northwest Twin Falls, there are several Eurasian ringneck turtle doves. They are not native to this area. This bird is larger than the native turtle dove. They have a black ring around their neck.

How species are formed and how species remain separate are crucial questions in evolutionary biology. The offspring of crosses between different animal species are often infertile or die when still in ...