15 Fastest Growing Organisms in the World

7. Duckweed

Kingdom: Plantae

Scientific Name: Lemnoideae

Growth Rate: double in mass every 16 hours

Duckweed ranks 7th in our list of the fastest growing organisms in the world. Duckweed is a fast spreading free floating plant found on the surfaces of ponds and other bodies of water. Because it spreads so quickly, duckweed may cover the entire surface of a pond very quickly, not allowing oxygen to pass through to the fish underwater. This can result in the death of fish, damaging the pond as well. Still, many rely on duckweed as a source of food for both poultry and humans, as it a great source of Vitamins A and B.