Mark Wong, The University of Western Australia and Raphael Didham, The University of Western Australia
Sometimes it seems the night is just buzzing with insects. But are there really more insects out at night? We analysed all the evidence on insect activity across the day–night cycle to find out.
Once hunted into corners of North America, black bears have expanded across the continent since the early 1900s. But bears that end up living near people aren’t seeking close encounters.
It’s becoming harder and harder for animals to find human-free spaces on the planet. New research suggests that to try to avoid people, mammals are shifting activity from the day to the nighttime.