Flicker

The flicker split from its ancestor the irisiri. It made its way to Otter Vents where it adapted to consuming sulfur for energy. Its flagellum now has tiny hairs on it in which it used to absorb sulfur and other nutrients. It flicks it back and forth, which gives it its name. Its base has developed thick cell walls which are mostly made of calcium. This helps it live close to the extremely hot sulfur rich vents. Its reproduction has advanced to mitosis. They can grow up to 20 micrometers in size.