World’s Smallest Snail

The world’s new smallest snail has a shell diameter of a mere 0.7 millimeters, dwarfing the previous trophy winner, Angustopila dominikae. These miniature beasts, called Acmella nana, are located on the island of Borneo in Malaysia and require a microscope to be seen in the wild.
These snails can help scientists to better understand how isolated species evolve in one place. They get stuck in one habitat because they move so slowly. There, they have enough time to grow undisturbed from the rest of the world.
Although they inhabit three places on the island, their delicate limestone caves are extremely easy to destroy. “A blazing forest fire at Loloposon Cave could wipe out the entire population,” explained researcher Menno Schilthuizen in an interview with LiveScience.
Quarrying the limestone hills in the area could also completely ruin the homes of these record-breaking snails as well as 47 other newly discovered species.