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 ...

Hi, my name is Wanda/Willie Red Wiggler Worm (Eisenia fetida) and I live in a worm bin. The bin is cared for by a local garden lover who uses the end product to fertilize her plants. My bin ...