Last update: December 13th, 2019 at 8:00 am
The smallest fish on earth is the Paedocypris (Paedocypris progenetica). Their transparent bodies average 7.9mm (0.31 in) in length. They are found in peat swamps of the Southeast Asian islands Sumatra, Borneo, and Bintan. Paedocypris are currently endangered and may be extinct by the year 2040 because of destruction of peatlands by fire and drainage of peat swamps in their native area.