Rare Partula Tree Snails Make a Comeback in French Polynesia   

• Tiny tree snails, once pushed to the brink of extinction, are slowly returning to the wild in French Polynesia, marking a rare conservation success after decades of effort. Partula snails are small, air-breathing snails that typically measure just 1 to 2 centimeters in length. They live on leaves and branches in tropical forests, feeding on fungi, algae, and decaying plant material and helping recycle nutrients and maintain forest health by breaking down organic matter. Their shells vary in color and pattern across islands, making them especially valuable to scientists studying evolution and biodiversity. Their decline began with a series of bad human decisions. French officials first introduced the African giant land snail to the islands as a food source, but it quickly became a widespread pest. In response, authorities then released the rosy wolf snail to control the population. However, rather than targeting the invasive species, the predator fed on native Partula snails, causing a rapid collapse. By the 1990s, many Partula species had disappeared. A small number survived through captive breeding programs in zoos and conservation centers around the world. Decades-long efforts have rebuilt populations and supported reintroductions on islands including Moorea and Huahine. Recently, more than 7,000 snails were released across four islands. Some were marked with fluorescent paint to help researchers track their survival. The most important sign is not the release itself. It is what happened after. Scientists have confirmed the presence of wild-born Partula snails, meaning the species is capable of reproducing without human assistance. Conservationists say the recovery remains fragile, but the snails’ return offers cautious hope for restoring biodiversity. May For The Teen Times teen/1775442350/1613367687