nick marx is the director of the organization, one of the few of its kind in asia.e's the head caretaker for more than 100 different species, all of which are in the sights of hunters and sellers. >> the thing about serow is they're very highly prized, both medicinally and as food. so they're heavily hunted, they're becoming increasingly endangered. they love salt. that's the other thing. they lick, lick, lick. it's a demonstration of what the illegal trade in wildlife is and what is doing to the species as well as every other species, driving so many formerly fairly common species to extinction. >> more than 50 attendants and veterinarians work at phnom tamao, which is funded by the government as well as through donations. the environmental activist has been ensuring better care for the animals for the past 13 years. >> often we receive animals in serious conditions. very, very badly injured animals come here, and this chap is one example. he had terrible bites to his head and to his he's lost his left eye completely. and now he's getting better thanks to the amazi