After facing near extinction, the Desertas Island land snail has been brought back from the brink thanks to a remarkable conservation effort led by England’s Chester Zoo. Starting with just 21 snails from the last wild population, the program has successfully bred hundreds and returned them to a restored Atlantic island habitat.
- Only 21 snails remained in the wild when rescue began.
- More than 300 descendants have been bred and released.
- Invasive animals were removed to restore natural habitat.
What happened
Chester Zoo undertook an urgent breeding program to save the Desertas Island land snail, Geomitra coronula, a species reduced to just 21 individuals found under a single rock. These snails had become critically endangered due to habitat loss caused by feral goats, mice, and rabbits that devastated the Madeiran archipelago where they lived.
Working alongside international partners including ZooParc de Beauval and the Madeiran Government, the zoo bred over 300 offspring from the rescued snails. Following invasive species removal and habitat restoration on the island, the young snails were carefully released back into their natural environment, marking a significant step toward their recovery.
Why it feels good
The near extinction of a species that could fit inside a petri dish highlights how fragile some ecosystems are and how close we often come to losing biodiversity silently. This successful rescue shows the powerful impact of dedicated conservation efforts and international cooperation.
Returning these snails to their pristine island habitat also benefits other vulnerable wildlife, including sensitive seabirds. It is a hopeful example of how intervention can reverse environmental damage and preserve unique species that contribute critically to ecosystem health.
What to enjoy or watch next
Chester Zoo is calling on conservation organizations across Europe to join in establishing breeding centers closer to the snails’ native islands. This network aims to secure the species’ future and engage local communities in ongoing preservation efforts.
For those interested in following similar stories, watching the gentle return of endangered species to their natural homes provides inspiration. Keep an eye out for updates on this snail recovery and related projects showing how small creatures can make a big difference in fragile ecosystems.