LifeTime to sterilise farmed salmon to save wild cousins Escaped farmed salmon can weaken the wild gene pool by cross-breeding, but there is a solution to hand, says an evolutionary ecologist Comment
SpaceFiery black hole debate creates cosmological Wild West Bids to solve the black hole firewall paradox are producing a free-for-all in theoretical physics – cue time reversal, walls of ice and bouncing stars News