Staff at a British animal park have solved the mystery of a wave of inexplicable guinea pig pregnancies. When staff found 100 female guinea pigs were pregnant they were baffled, as the animals were held in an all-female enclosure. Investigations revealed that a male guinea pig, now nicknamed Randy by the staff, had escaped his own pen and somehow ended up in the female pen, where he wasn’t long in making his mark.

When staff discovered Randy they noticed he had lost a little weight and seemed tired, but was otherwise none the worse for wear thanks to his excursion.

Manager of Hatton Country World in Warwickshire Richard Craddock told ITV: "One of our male guinea pigs managed to find his way into the female enclosure and had a very good time by the looks of it.

"We suspect a child may have placed him back in the wrong pen by accident after stroking him or Randy may have somehow broken out of his enclosure to get to the females."

"We believe that the newly-named Randy could have impregnated up to 100 female guinea pigs, which have litters of about four, so if you do the maths we could be expecting quite a baby boom.

"We don't know how long Randy was in the female enclosure but it could have been several weeks which would have given him time to go round the entire female population.

"Staff did comment he looked a little thinner than before. He has now re-joined his male friends, clearly he's got a lot of bragging to do."

Staff at the farm are now preparing for a population explosion of up to 400 additional guinea pigs.