Parasitic wasps of the genus Trichogramma are among the smallest insects in the world—yet they play an important role in ...

Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. In the 19th century, the German zoologist Christian Bergmann pondered a simple ...

What initially draws my eyes to the tall, stalky plant growing near the Oconaluftee Visitor Center in Great Smoky Mountains National Park is the round, green bulge in a stem near its crown. Called ...