At some point in the far future, another massive lake opens up along the great rift valley system in East Africa. Among the first creatures to colonize this virgin habitat are the wholly aquatic clawed frogs. They become adapted to a midwater existence, developing large hind feet, stabilizing/gas exchanging fins along their flanks, a fusiform body and tiny front limbs to capture and manipulate food. These frogs feed on small cichlids, and are the top predators in parts of the lake.
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