It started as the kind of small morning moment most people would miss: a bit of movement on the ground, a strange shape sliding across the surface, and the quick thought that it was probably just a worm. But a closer look showed something far less familiar.
The creature had a flattened body and a head that looked unusually wide, almost like a tiny hammer. That distinctive shape pointed to a hammerhead worm, also called a land planarian.
These animals can surprise homeowners and gardeners because they do not look like the earthworms many people are used to seeing in soil. Their appearance is unusual enough that, once you know the basic signs, they are hard to confuse with a typical garden worm.
What Is a Hammerhead Worm?
Hammerhead worms are flatworms with long, flattened bodies and broad, hammer-shaped heads. They move in a smooth gliding motion rather than the familiar crawl of an earthworm.