LifeWhy are there no flightless bats? We're closing in on an answer A careful look at the few bats that can walk on the ground – including the common vampire bat – is helping us understand why evolution has yet to produce a flightless bat Features
PhysicsThe wonder particle: How axions could solve more than just dark matter Physicists are coming to realise that hypothetical particles called axions could explain not only dark matter, but dark energy too, and more besides. Now there is fresh impetus to detect them Features