LifeSwimming in a school may help fish hear dolphins’ ultrasound clicks Models suggest the arrangement of American shad in a shoal amplifies the ultrasonic clicks that dolphins use to hunt, helping the fish detect and evade these predators News
LifeWhen geckos play ball and spiders spar: The strange evolution of fun The ability to play is being spotted in some unexpected creatures, from swans to Komodo dragons. Are they really fooling around? And if so, why do they do it? Features