Caterpillars

Screaming trees seek help: predators to the rescue

In an experimental study involving oak trees, caterpillars that eat oak leaves, and predators that eat caterpillars, a complex web of interaction is revealed.

In a first, researchers find tomato fruits communicate with tomato plants

When tomato fruits are pestered by pests such as caterpillars, a study finds, they emit electrical signals to the main plant which then secretes hydrogen peroxide to make the plant more unpalatable to herbivores.