The Guardian

[:es]When high doses of painkillers led to widespread addiction, it was called one of the biggest mistakes in modern medicine. But this was no accident.[:]

[:es]The discover of a unique rooting anatomy from 407m years ago supports theory roots evolved at least twice, and step by step[:]

[:es]Urgent changes needed to cut risk of extreme heat, drought, floods and poverty, says IPCC[:]

[:es]Researchers not sure apparent protective effect extends to progestin only products such as mini pill and implants[:]

[:es]60% of the bonnethead shark’s diet is made up of seagrass, which they happily graze upon as well as eating fish, crabs, snails and shrimp[:]

[:es]Galápagos finches have been the subject of a plethora of evolutionary studies, but where did the first ones come from?[:]

[:es]From the nut-cracking crows of Sendai to ‘Turdus urbanicus’ (the new urban blackbird), animals are changing their behaviour and evolution in cities – and in dramatic and surprising ways[:]

[:es]The Nuffield Council on Bioethics says changing the DNA of a human embryo could be ‘morally permissable’ if it is in the child’s best interests[:]

[:es]Nascent planet seen carving a path through the disc of gas and dust surrounding the very young star PDS70[:]