When did we become fully human? What fossils and DNA tell us about the evolution of modern intelligence

Mariano/Wikipedia, CC BY-SA When did something like us first appear on the planet? It turns out there’s remarkably little agreement on this question. Fossils and DNA suggest people looking like us, anatomically modern Homo sapiens, evolved around 300,000 years ago. Surprisingly, archaeology – tools, artefacts, cave art – suggest thatContinue Reading

Novichok: how are victims surviving poisoning?

Russian opposition leader Alexei Navalny is likely to survive a suspected poisoning with the nerve agent Novichok, according to the hospital treating him. There have now been at least six known cases of serious Novichok poisoning in the past two years. But only one victim tragically died from it. WhyContinue Reading