Average number of segments on an earthworm

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How many segments are there on average on an earthworm?

It varies with the species

It is impossible to provide the exact number of segments on an earthworm.  The main idea is that it varies with the species. Believe it or not, there are around 2,200 earthworm species.  Keep in mind that some have over one hundred segments. For example, did you know that the common American and European earthworm, Lumbricus terrestris, has about 150 segments?  It is widely known the fact that Earthworms’ bodies are made up of ring-like segments called annuli.  It is important to know that the worm’s first segment contains its mouth.

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