Shao Jian Feng, 26, with a saltwater crocodile (Crocodylus porosus) in his home in Beijing. When fully grown this juvenile can reach up to six metres, making it the largest reptile in the world. He owns five crocodilians and two large snakes. “There are 23 crocodilian species in the world. We hope to collect all of them,” he says. Saltwater crocodiles can retail for up to 9,000 RMB ($1,500). In the wild, they are found mainly in south-east Asia and northern Australia.

Photograph: Sean Gallagher