Rediscovery of world's smallest snake announced

The tiny Barbados threadsnake is rediscovered after nearly two decades, raising hopes for biodiversity.

Rediscovery of rare Barbados snake highlights conservation challenges

The Barbados threadsnake, the world's smallest known snake, has been rediscovered after an absence of nearly 20 years. It was found by Connor Blades, a project officer with Barbados’ Ministry of Environment, during an ecological survey in March 2025. Classified as critically endangered, this snake, which grows up to four inches, had been considered lost to science since a 2005 sighting. Blades carefully identified the snake after capturing it in the wild, underscoring the species' elusive nature, as it often hides beneath the soil and is virtually indistinguishable from its surroundings. Its rediscovery is not only a relief for scientists but also serves as a crucial moment for conservation efforts. Given its rarity, the snake is seen as a symbol of the rich but endangered biodiversity in Barbados, where many native species have vanished over the years. Conservationists, including members of Re:wild, emphasize the importance of protecting habitats to sustain remaining endemic species and prevent further extinction.

The rediscovery of the Barbados threadsnake raises significant questions about biodiversity conservation on small islands. With 48 species recently declared lost in the Caribbean, the findings highlight the fragility of ecosystems that are already under threat from urban development and climate change. Officials are hopeful that the attention garnered from such discoveries will fuel conservation initiatives. As Justin Springer from Re:wild points out, every find can inspire stronger protective measures. However, the ongoing decline of native species in Barbados poses a stark challenge. Conservationists must leverage stories like that of the threadsnake to mobilize public interest and political will for protecting what remains.

Highlights

The rediscovery of the threadsnake shines a light on the urgent need for conservation efforts in fragile ecosystems.