Hexpudger

Splitting from its ancestor, the hexpudger has shrunken in size and simplified parts of its biology accordingly. It is, unlike its ancestor it is highly mobile as it doesn't need to spend energy on growing larger, it lives in large swarms and feeds on the plentiful plankton when it is available. They give live birth to mini versions of themselves that mature rapidly within weeks. Because of this, they live fast and die young at around two months.