When you shine a beam of light on your hand, you don’t feel much, except for a little bit of heat generated by the beam. When you shine that same light into a world that is measured on the nano- or micro scale, the light becomes a powerful manipulating tool that you can use to…

T. rex may have been the most ferocious creature in the jungle, but something as simple as growing hair may have helped mammal-like reptiles to outlive this scary beast. By scanning the fossil remains of mammal-like reptiles from the Karoo of South Africa, Dr Julien Benoit and his colleagues from the University of the Witwatersrand, Professors…