The bobbit worm, also known by its scientific name Eunice aphroditois, is a segmented worm species in the phylum Annelida. This animal family includes roughly 22,000 species of earthworms, leeches ...

These worms burrow underground during the day and emerge above ground at night to deposit their castings. Nightcrawlers are vertical burrowers capable of digging down as deep as 8 feet in moist soil.