Many of Pennsylvania’s earthworms have roots back to other countries and one jumping species is causing a growing concern for forests. “During the last Ice Age, the glaciers came down and covered all ...

They have no eyes or ears, but they’re an important feature for healthy gardens the world over. This week, we’re digging up the dirt about earthworms. * “Lumbricus terrestris,” or the common earthworm ...

In a recent study measuring the body size and growth patterns of invasive earthworms in the Huron Mountains, researchers uncovered their role in disrupting forest ecosystems. Contrary to popular ...

Most earthworms in Pennsylvania are not native and were introduced from Europe, often via soil used as ballast in early ships. While beneficial for gardens and lawns, these introduced earthworms can ...