LifeOrcas have begun wearing salmon hats again – and we may soon know why About 40 years ago, researchers noticed a population of orcas had begun swimming around with dead fish on their heads, and now the craze is back News
EnvironmentHere's how coral reefs might survive hotter, more acidic oceans Coral reefs around the world are at risk of collapse due to rising temperatures and acidifying oceans, but the natural adaptability of some species may help buy time News