Teeth marks made on the leg bone of a large avian reptile known as a terror bird 13 million years ago suggest an even bigger ...

New versions of the H5N1 virus are increasingly adept at spreading. Suggestions to either let it rip in poultry or vaccinate the birds could backfire.

Known as Britain's largest bird of prey, white-tailed sea eagles have a wingspan of up to 2.5 metres and weigh between 4.3 ...