The filtering fee split from its ancestor and now lives only in the water. It now uses a tail to steer through the water. Instead of taking nutrients from the ground it filters the water for food. Like Its ancestor, the filtering fee reproduces by growing a wall of outer-layer cells in the middle of it's body, and then splitting in two.
Living Relatives (click to show/hide)
These are randomly selected, and organized from lowest to highest shared taxon. (This may correspond to similarity more than actual relation)