|MadSci Network: Zoology|
In addition to sexual reproduction, sponges can reproduce by fragmenting. A storm may break apart a sponge and each piece can regrow into a completely formed sponge. Because of this, sponges are theoretically immortal. In practice of course, disease, predation and freak accidents take a toll so that even an immortal individual would not live forever, not even a sponge.
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