EnvironmentHumans use a quarter of all the biomass created by plants on land To stay within safe planetary boundaries, humans should only use around 10 per cent of the biomass produced each year by plants on land, but we are currently way above that level News
LifeGalapagos giant tortoise argument may threaten conservation efforts How many distinct species of Galapagos giant tortoises are there? The latest genetic study says at least five, disputing previous work, and the answer could have implications for their conservation News