LUCA, the 4.2 billion-year-old cell that’s the ancestor of all life on Earth today
Scientists have long sought to pinpoint when the last universal common ancestor (LUCA) lived, and a new study suggests it was much earlier than previously thought – around 4.2 billion years ago. This ancient cell is the ancestor of all living things on Earth today. LUCA wasn’t significantly different from complex bacteria that exist today, … Read more