Botany, the science of plants. Botany is one of the major branches of biology, the science of living things. Other major branches are zoology, the science of animals, and microbiology, the science of microscopic organisms.There are more than two hundred thousand plant species throughout the world.
A mass extinction on Earth is long overdue, according to population ecologists. Find out what Earth's fossil record may be telling us about our future.
When traffic lights are functioning, drivers (usually) behave. Break a light, and everything comes to a standstill. Broken traffic lights are like DNA mutations, but lightning isnâ€™t the culprit in this situation.