The humble guppy fish may be tiny in size but it's big in brain power according to new research. Male guppies living within close proximity of predators have been found to have bigger brains than those who don't. SABRINA WEISS reports
The ongoing evolutionary battle between predator and prey is brought into focus by new research on the hunting tactics of the barbastelle bat. As moths have evolved to hear its prey approaching, the barbastelle bat has responded by going quiet. SABRINA WEISS reports
