Old salt lizard at home in Darwin's primal landscape Photographer Sebastião Salgado sets the armour-like scales of the world's only seafaring lizard among the hard landscape of the Galapagos Islands' laval rocks Regulars
HumansThe brain: From tiny neurons to expansive minds How does the brain generate a conscious mind? Such understanding is still far off, but we are getting to grips with many previously intractable problems Features