All news on the topic: Siamese twins

Doctors said Marieme and Ndeye would not survive for long when they were born but, in May this year, they will celebrate their 8th birthday with their loving family

Conjoined twins Annie and Issie Bateson, from Northern Ireland, are thriving and behaving like "typical sisters" since going through an arduous operation to be separated last year

The one in 2,500 anomaly led to a mutant calf being born to a struggling heifer. Farmer Leslie Hunewill said: 'As it was dark, windy, and snowy, it wasn’t immediately apparent that the calf had two heads, though it was evident that something was different'