Triops or Tadpole Shrimp (Triops longicaudatus) also called "living fossils" this genus have been found in rocks hundreds of millions of years old. Triops are commonly sold in kits as pets.© Dan Olsen ...

Sometimes, creatures are so strange-looking that they compel us to do a double-take. This Instagram video shows active, trilobite-like creatures grabbing earthworms in the water, riding them, and ...