While alligators and crocodiles share a fearsome appearance, key differences set them apart. Snout shape, tooth visibility ...

Four all-Premier League ties as Newcastle take on Spurs, Arsenal host Brighton, Liverpool face Palace and Wolves welcome Chelsea; three Welsh teams have reached the fourth round for first time; Round ...

Where do we come from? It is one of humanity’s oldest questions. For decades, the dominant narrative has placed the great exodus of modern humans—the journey that led us to colonize every continent ...