
Once, there was a sponge found with more than 16,000 species in it.
Sponges are remarkable pumping 'machines.' In general, considering the different types of sponges there are, sponges can pump 10,000 times their own size (volume) in water in one day. A sponge the size of a gallon milk container could pump enough water to fill a residential small size swimming pool within one day.

Photo copyright Aris Entertainment
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