In Chumo-Khun Lei National Park in Vietnam, a bull collided with a truck and the bison died instantly. According to the driver, when he drove the building materials past here and saw that there were bison in the distance, he stopped the car and waited, but did not expect the bison to rush over and crash into the front of the car, resulting in a powerful impact causing the bison to die on the spot. According to relevant units, the bison is about 7 years old and weighs about 800 kilograms. This is a very rare bison, the Khmer cattle. There are fewer than 200 Khmer cattle in isolated areas of Vietnam, Laos and Cambodia.
The Khmer cattle are somewhere between Indian bison and smaller Javan bison. The body is characterized by slender legs and a large piece of drooping flesh in the throat. The classification of Khmer cattle remains undetermined, with some zoologists believing that they are purebred bison, others believing that Khmer cattle may have been domesticated for hundreds of years before becoming bison, and others believing that they were hybrids.
