Partula is re-establishing its place in Pacific ecosystems because of a pioneering rescue initiative that began in 1991 and now includes 15 zoos around the world. Led by the Zoological Society of London, the alliance focuses on captive breeding and reintroduction. Recently, more than 7,000 Partulas of various critically endangered species and subspecies were introduced across four French Polynesian islands — the largest undertaking of its kind.