Flavumvar

The flavumvar has split from its ancestor. Whilst flovar effectively swim through the water, these cells stick to rocks. Their flagella-like structure now ‘grips’ the rock and here the cell soaks up the sun. This conserves energy as the cell no longer has to use energy to swim. However, if there is a better place for sunlight, they will swim like their ancestor to a better spot. They are only able to survive in slow moving water, as running water dislodges the cells easily.