Readers reply: how different are modern humans from the first Homo sapiens?

The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific and philosophical conceptsHow different, genetically, physiologically or mentally, are humans today from the first Homo sapiens? And do these changes reveal anything about how we might evolve in the future? Gail Whitbourne, Quebec CitySend new questions to nq@theguardian.com. Continue reading...