A wonderful little creature. There are 9 at London. I think it's the second biggest group outside of Asia.( the biggest being at San diego.) In the population explosion of the '80s, Villagers in Sarawak would just pluck piglets out of the water as their families swam across the river. When brought back, they were held in cages designed for keeping domestic pigs. They escaped and After a couple of Days there were hardly any in the village.
I believe Singapore held the Sumatran subspecies (sus barbatus oi) along time ago
