The enigmatic grass rings that can cover hundreds of square kilometres in the arid lands of southwest Africa look to be the result of some smart ecosystem management by termites.

The Met Office has admitted issuing "unhelpful" advice to government during last year's remarkable switch in weather patterns.

Scientists in the US create robotic ants - tiny machines, which they say behave just like a real ant colony.

A Soyuz space capsule docks at the International Space Station (ISS) after a journey of less than six hours - compared to the normal flight time of two days.