The Kouprey, one of the most famous zoological discoveries of the 20th century, may never have existed.

15/03/2007 00:00:00 September 2006. It was one of the best known zoological discoveries of the 20th century. Shrouded in mystery since its recognition as a new species in 1937, the kouprey -- an ox with dramatic, curving horns -- has been an icon of Southeast Asian conservation. Feared extinct, it's been the object of many expeditions to the region's jungles by adventurers, scientists and journalists. In a paper published by the Journal of Zoology (London), Northwestern University biologists and a Cambodian conservationist present compelling genetic evidence that the kouprey may never have existed as a wild, natural species.

The scientists compared a DNA sequence from the kouprey with sequences taken from a Cambodian wild ox, the banteng. They had predicted, based on a study of kouprey anatomy, that the kouprey was a hybrid and would show mitochondrial DNA similar to that of the banteng. This prediction was confirmed by the analysis.

The kouprey, the national animal of Cambodia, may have originated as a domestic hybrid, between banteng and zebu cattle, that later became wild. (‘Kouprey’ means ‘forest ox’ in the Khmer language.)
‘The kouprey has acquired a rather romantic, exotic reputation,’ said Gary J. Galbreath, senior author of the paper and associate director of Northwestern's Program in Biological Sciences. ‘Some people would understandably be sad to see it dethroned as a species.’

But, added Galbreath, ‘It is surely desirable not to waste time and money trying to locate or conserve a domestic breed gone wild. The limited funds available for conservation should be used to protect wild species.’ Galbreath has been traveling to Southeast Asia studying its animals since 1999.

Ironically, Galbreath began his work in Southeast Asia hoping to identify a new species of bear. It turned out to be an undescribed golden colour phase of the moon bear. He also was involved in the debunking of another alleged new species of hoofed animal, the ‘khting vor,’ which was only known to science from specimens of its horns. Galbreath and others showed that these horns were the work of human artisans -- the ‘khting vor’ was a fake.

Instead of finding new species, Galbreath said, ‘I've been involved in showing that two named species of large mammal may never have existed.’ But, he notes, ‘In the end, good science is about what is true, not what we want to be true.’

Galbreath hopes the paper will serve to focus conservation time, dollars and attention on real species that need saving. ‘The definitely real wild oxen of mainland Southeast Asia -- Banteng, Gaur, wild Water Buffalo -- could soon become extinct if more is not done to protect them from rampant poaching,’ Galbreath said. ‘I hope that the publicity from the kouprey story can help make people aware of this problem.’