A blackworm can regrow all of its head segments, no matter how many are cut off, but the red wiggler (Eisenia fetida), a popular composting worm, can usually only regrow a few. The worm's ...

Vermicomposting uses various species of worms, typically red wigglers (Eisenia fetida), to decompose organic waste such as food scraps. As worms eat, they produce castings, aka worm compost ...