Chicks abused by older birds are more likely to grow up to become abusers themselves, perpetuating a "cycle of violence", according to a study of Nazca boobies.

Permission for the harvesting of gannet chicks to be eaten as a delicacy is to be reviewed by Scottish Natural Heritage.

Schools of fish show engineers how to squeeze much more power from wind farms.

Scientists create spermless mosquitoes - an important first step toward releasing sterile males into the wild in an effort to curb the spread of malaria.