Others would describe it as a moo-t point.
But when these twin calves were born ten days ago, they looked so different that the farmer who owns them has declared then to be completely different breeds.
According to Vic Phillips, you can tell the breeds apart by the colour of their coats.
And when his Aberdeen Angus bull Eric mated with a Simmental cow called Jemima, he says he was blessed with two calves that each continued one of the mating lines.
Mr Phillips, who farms his cattle in Rooksbridge, Somerset, says Ernie has come out a fawn colour and is the same breed as his mother, a Simmental.
And he claims Emily, who is darker shade of black and brown, is an Aberdeen Angus.
Speaking from his 90-acre farm, Mr Phillips said: 'It happens but it is quite rare.
'I thought there must have been a mistake and another cow had given birth as well but it turned out that they were twins.
'We have only been farming for two-and-a-half years this is our first ever set of twins.'
He said he only has one bull, so it is not possible that another bull mated with Jemima.
His wife Trish added: 'Normally when you get twins they are both the same breed but we got one of each which is really rare.
'They are both doing really well and we are delighted with our unusual twins.'
Experts in the field, however, urged some caution before hailing an evoluntionary breakthrough.
Ron McHattie, chief executive of the Aberdeen-Angus Cattle Society, said: 'I suppose if the heifer had mated with two different bulls of different breeds on the same day two different eggs could have been fertilised and she would have conceived twins of different breeds.'
Cattle specialist Sally Wilson from Evolution Farm Vets in Bridgwater, Somerset, said the only way it can happen is if the female mated with two different bulls, of different breeds in the same sitting.
Cow gives birth to different breeds
