How Therapod Dinosaurs Swapped Teeth for Bird Beaks

Using fossils and a large comparative analysis of modern animals, a team of evolutionary biologists has found that the loss of teeth and the emergence of beaks are connected processes in theropods. As the beak grew across the dinosaur’s face, it also inhibited the growth of teeth. On an evolutionary scale this transition happened until theropods developed mouths that resembled the bird beaks seen today.

The source of high-energy cosmic rays finally detected

Scientists confirm for the first time that high-energy cosmic rays come from a galaxy-dense area of sky 100-200 million light years away.

Scientists build 'DNA robots' that transport molecular cargo

Researchers have built a team of robots, made entirely out of DNA, that can walk around and sort molecules.