Humans and their primate cousins are well known for their intelligence and social abilities. You hear them called bird-brained, but birds have demonstrated a great deal of intelligence in many tasks.
However, little is known about their social skills. A new study shows that ravens are socially savvier than we give them credit for. They are able to work out the social dynamics of other raven groups, something which only humans had shown the ability to do.
Most people are fascinated, and probably equally repulsed, by parasites. And it may be something you think you only need to worry about if you go on holiday somewhere exotic. However, increasing globalisation and transportation of food products across the globe means we are all increasingly at risk of catching something unwanted from our favourite foods.