How do plants defend themselves with chemicals?
Tiny Chemical Warriors
How do plants defend themselves with chemicals?
You're walking through a forest, and everything looks peaceful. Trees sway. Birds sing. Flowers bloom. But hidden in all that green, a slow-motion chemical war is happening. Plants can't run away from hungry bugs and animals — so instead, they fight back with an arsenal of invisible weapons: poisons, irritants, and tricks brewed right inside their leaves and roots.
When a caterpillar takes a bite of a leaf, the plant feels it. Instantly, the damaged cells send out alarm signals — chemical messages that spread through the plant like a fire drill. Within minutes, the leaf starts cooking up defensive chemicals in its little cellular factories. Some of these chemicals taste horrible. Others are straight-up toxic.
