EarthWild animals are turning nocturnal to keep away from humans Dozens of species all around the world are abandoning the day and becoming more active at night, to avoid contact with humans 51¶¯Âþ
LifeThe most elusive whales reveal their secrets in their wakes We know almost nothing about the enormous beaked whales because they spend so much time deep underwater, but a new DNA technique could unmask them 51¶¯Âþ