It took an international collaboration of researchers to finally pin down the strange phenomenon.
Flowers tend not to own calendars, so how do they know when to bloom?
Swedish study finds maize plants respond to above-ground stress using below-ground signals.
Plants are constantly under attack. They face threats ranging from microscopic fungi to small herbivores like caterpillars, up to large herbivores like elephants. But plants are ready, with a whole series of internal and external defenses that make them a less appealing meal — or even a deadly one. Valentin Hammoudi explains some of the fascinating ways that plants defend themselves.