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Science & SocietyHumans exploit about one-third of wild vertebrate species
An analysis of nearly 47,000 vertebrate animal species reveals that using them for food, medicine or the pet trade is helping push some toward extinction.
By Sid Perkins -
ClimateThe snow forest of North America may be about to shrink
From 2000 to 2019, the boreal forest’s northern boundary didn’t move while southern tree cover thinned due to climate change, wildfires and logging.
By Nikk Ogasa -
AstronomyA newfound gravitational wave ‘hum’ may be from the universe’s biggest black holes
Scientists reported evidence for a new class of gravitational waves, likely created by merging supermassive black holes.