HealthHaving children plays a complicated role in the rate we age The effort of reproducing may divert energy away from repairing DNA or fighting illness, which could drive ageing, but a new study suggests that is only the case when environmental conditions are tough ¿ìè¶ÌÊÓÆµ
HumansUnderstanding the Denisovans means understanding ourselves Categorising the Denisovans as a distinct species would allow us to more comprehensively trace our own evolutionary development Leader