The shape of birds' eggs could have helped them survive the mass extinction event that killed off the dinosaurs, new research proposes.

Spending on flood protection in England is "insufficient" to maintain defences, the National Audit Office warns.

Two Vietnamese nationals in South Africa have been charged with the illegal possession of 41kg (90lbs) of rhino horn, police tell the BBC.

A new study offers insights into the genetic changes that allowed land-dwelling animals to develop sex organs.