Earthworms act as ecosystem engineers and over centuries, they have shaped the landscape and changed the soils on the Isle of Rum in Scotland. Here’s how.
Rock dust is only part of the story of soil. Living creatures, many of them too tiny to see, keep that soil healthy for growing everything from food to forests.
Pink blood, green blood, or no blood at all – when it comes to what’s inside a worm’s body, the answer is more complicated – and fascinating – than you’d think.
Was Darwin inspired by the tropical wildlife of his travels to discover natural selection? Actually, pigeons, worms and barnacles were far more prominent in his thinking.
Most of the earthworms in the US Northeast and upper Midwest are nonnative species. Scientists are finding increasing evidence that invasive worms and invasive plants may help each other.