Polar Ciliognathus

The polar ciliognathus split from its ancestor the ciliognathus. Like its ancestor it has an oral groove-like horizontal jaw, which helps it consume smaller cells. It also has the option to filter edible particles.

It reproduces by binary fission, but in certain conditions, like overcrowding and environmental stress, it undergoes a sexually reproductive process called conjugation. It lines up with another polar ciliognathus and they fuse together. They then exchange genetic material. The two polar ciliognathus detach. The two become four new cells.

It has also adapted to the new frozen waters of the south tundra lakes. It can stay dormant in solid ice until its unfrozen again.