Earthworm

Moist soil, decaying organic matter, and damp indoor areas like bathrooms or basements

Detritivore, feeding on decaying organic matter, leaf litter, and microorganisms in the soil

Burrows through soil, highly sensitive to moisture levels and light, often surface during heavy rain to avoid drowning

Benefits include aerating soil, improving nutrient cycling, and serving as food for various wildlife; they pose no significant risks to humans