LifeCrickets rapidly evolve new mating call to evade their parasites In Hawaii, parasitic flies target singing crickets, forcing them to rapidly evolve to escape detection. Now some males have developed a special, seductive purr News
HumansYou can recognise around 5000 faces, from family to celebrities For much of human evolution our ancestors may have encountered only a few hundred people in their lives – but we can each recall about 5000 distinct faces News