One in twelve sheep is gay and it's causing problem with breeding, according to Channel 4's new documentary - My Gay Dog And Other Animals.
Gay rams refuse to breed with ewes and will therefore end up being killed for their meat.
Dewi Jones, head of sheep breeding firm Innovis, said: 'Commercially it's a big issue for us as a ram breeder because we need our rams to cover lots of ewes.
'They unfortunately go into the food chain.'
Documentary footage shows a ram get put into an enclosure with 30 ewes.
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He ignores all of them and instead tries to get to a nearby pen full other other rams.
According to the Sun, American Professor Charles Roselli, who studies sheep brains at Oregon Health and Science University, believes a sheep's sexual orientation is decided in the womb.
He said: 'Testosterone causes masculinisation of the brain, male-oriented rams are not being exposed to as high a level of testosterone pre-natally than female-oriented rams.'
He estimates that eight per cent of sheep are gay.
The documentary, which hits screens at 9pm on June 6, also reveals other animals which have been known to show homosexual tendencies.
Bonobo monkeys, dogs, tortoises and lions have all been noted as engaging in same-sex relationships.
This article has been adapted from its original source.
