A multinational team of researchers has found evidence of human habitation in South Africa’s Wonderwerk Cave stretching back in time to nearly 2 million years ago—perhaps the earliest known habitation of a cave by humans—offering a timeline of the evolution of stone tools, the use of fire, and even theread more

A new coronavirus variant has emerged in India that has three genetic mutations that could make the virus both more deadly and transmissible. Although this new variant, called B.1.617, is still under investigation, it appears to be the product of a number of mutations, with three of its fifteen known mutationsread more