The evolution of hominin bipedalism in two steps Nature

Cas12a2 enables RNA-triggered, sequence-specific killing of eukaryotic cells via widespread DNA shredding, allowing selective elimination of cells on the basis of gene expression, including virus-infected or mutation-bearing cells.

Earth is increasingly ‘out of balance’, as more heat is trapped in the atmosphere, driving global warming.

Their makers claim they can detect dozens of cancer types — but some scientists say they could be missing many cancers or delivering the wrong diagnosis.