Blooms from this abundant plant occur about every 50 years. Here's why it causes a rat flood and, ultimately, famine in certain regions of the world.

Many plants make flowers, which turn into fruits. Flowers and fruits make their own seeds. We call this a life cycle. The world is full of different plants like flowers, trees and vegetables but ...

Now that is smart. It explores common plant life cycles, showing how a seed becomes a plant and how new seeds are made. It looks at life cycle stages, explaining how plants change and develop as ...