HumansWe evolved to match local micronutrient levels, which may be a problem Most human populations evolved to cope with low or high local levels of micronutrients such as zinc, but these localised adaptations might now be problematic 51¶¯Âþ
HumansWhat were ancient humans thinking when they began to bury their dead? Claims that a small-brained hominin called Homo naledi buried its dead raise intriguing questions about ancient minds and why we engage in this peculiar practice Features