Longest-lived two-headed cow

The longest time a two-headed cow has lived is 17 months 15 days. Gemini, a heifer Holstein calf, was born on 4 August 1991 on Russell and Perry Stowells' Farm in Woodland, Michigan, USA weighing 340 kg (749 lb) and died on 19 January 1993.

Gemini had two mouths, two noses and four eyes, two of which were located in a single eye socket in the centre of her bridged forehead. A vet removed the centre eyes which had no eyelids and were blind. She had one large bridged skull with a very large brain, most probably the result of two joined brains. Gemini was capable of eating and swallowing with both mouths even though the lower jaw of her left face was split and misaligned. She also had a cleft palate in the roof of her right mouth which would catch hay when she was eating. She used to be bottle fed a mixture of milk and feed pellets twice a day. After she died she was stuffed and mounted on an artificial background of rocks, plants, mud and water, a process which took approximately 500 hours.