South-east Asia's hoofed animals under threat - in pictures

Wild water buffalo (Bubalus arnee), an Asian icon. Tethered to available water sources, there are less than 4,000 buffalo living in the wild. The Greater Mekong region spans Cambodia, Laos, Burma, Thailand, Vietnam and the southern province of Yunnan in China Photograph: Heather L. Bradley/WWF-Cambodia

Banteng (Bos javanicus) feeding in the Mondulkiri protected forest, Cambodia. The banteng are critically endangered and have declined by 80% in the last 24 years Photograph: WWF-Cambodia

Banteng (foreground) and gaur (background) face a multitude of threats Photograph: Wayuphong Jitvijak/WWF-Thailand

A herd of gaur (Bos gaurus) running in the Kuiburi national park, Thailand. Gaur are especially threatened by the illegal horn trade Photograph: Wayuphong Jitvijak/WWF-Thailand

Drawing of a now extinct Kouprey (Bos sauveli). The last confirmed sighting of a kouprey was in 1983 Photograph: Helmut Diller/WWF-International

Eld’s deer (Rucervus eldii) photographed in the Mondulkiri protected forest, Cambodia. The deer is described as a hunter's favourite Photograph: WWF-Cambodia/WWF-Cambodia

Hog deer (Hyelaphus porcinus), an ungulate that thinks it's a pig. The deer is named after its odd way of running Photograph: WWF-Cambodia

Sambar (Rusa unicolor), captured on a camera trap. The sambar is a favourite meal of Asiatic lions and tigers Photograph: WWF-Cambodia

A photograph of the now extinct Schomburgk’s deer (Rucervus schomburgki). Endemic to Mekong, the deer was the first of its kind to become extinct within the region Photograph: Lothar Schlawe/WWF

Large-antlered muntjac (Muntiacus vuquangensis). The largest of the muntjac species, it tends to be caught in snares that are set for wild pigs Photograph: Nam Theun 2 Watershed Management and Protection Authority (WMPA)/WWF

Female muntjac (Muntiacus muntjac), found in south and south-east Asia Photograph: Terry Whittaker/Alamy

Wild saola (Pseudoryx nghetinhensis) camera-trapped in Bolikhamxay province, central Laos in 1999. Known as the 'Asian unicorn', this mysterious creature has almost achieved mythical status Photograph: William Robichaud./WWF

Endangered Asian elephant (Elephas maximus) grazing in restored grasslands in Kuiburi national park, Prachuap Khiri Khan province, Thailand Photograph: WWF-Thailand

Critically endangered red-headed vulture (Sarcogyps calvus). Ungulates are one of the vultures main food sources Photograph: JP Delpal/WWF

Indochinese tiger (Panthera tigris corbetti). Fewer amounts of ungulates are hindering tiger conservation efforts, with only 350 tigers left in the Greater Mekong region Photograph: Howard Cheek/WWF-Greater Mekong