Hammerhead flatworm (land planarian)

Moist, shaded soil, leaf litter, gardens, and under pots or logs; often encountered in damp places.

Predatory, feeding mainly on earthworms and other small soil invertebrates; some species also eat snails or slugs.

Moves by gliding on a mucus layer and is most active in damp conditions, often at night. The broad end appears elongated in the photo, so the distinctive hammer-shaped head is not clearly visible.

Not dangerous to people or pets, but may harm earthworm populations and soil health. Some species produce irritating tetrodotoxin; avoid handling and do not cut one apart.