Ravens and American crows belong to the Corvidae family and other species such as rooks, jackdaws, and choughs. They are similar enough to make distinguishing between them difficult. However ...

Ranging in size from the relatively small pigeon-size jackdaws to the common raven of the Holarctic region ... Recent research has found some crow species capable of not only tool use but also ...

It will be a few years before the tortoises, roughly the size of playing cards, have shells tough enough to avoid becoming ...

Ravens, like birds of prey, are a protected species in the UK and it is illegal to shoot them. Dr Norris said: "We do report everything to the police, to try and make a difference. "But to be ...