Biography of earthworm

Terrestrial invertebrate, order Opisthopora

This article is about the terrestrial invertebrate animal. For the DC Comics character, see Earthworm (comics).

An earthworm is a soil-dwelling terrestrialinvertebrate that belongs to the phylumAnnelida.

The term is the common name for the largest members of the class (or subclass, depending on the author) Oligochaeta.

Biography of earthworm

In classical systems, they were in the order of Opisthopora since the male pores opened posterior to the female pores, although the internal male segments are anterior to the female. Theoretical cladistic studies have placed them in the suborder Lumbricina of the order Haplotaxida, but this may change.^{[clarification needed]} Other slang names for earthworms include "dew-worm", "rainworm", "nightcrawler", and "angleworm" (from its use as anglinghookbaits).

Larger terrestrial earthworms are also called megadriles (which translates to "big worms") as opposed to the microdriles ("small worms") in the