You may know that bees (蜜蜂) make delicious honey. But do you know that they keep us all alive?

Every year on May 20, it’s World Bee Day. It’s a day to thank bees for all they do. Without bees, we might not have any food! Three quarters of the world’s flowering plants depend on bees and other animals to grow. When bees fly from plant to plant, they carry pollen (花粉). The pollen makes new plants grow.

There are about 20, 000 different kinds of bees all over the world. They work all day for their queen, the biggest bee in the hive (蜂巢). She will lay 800, 000 eggs in her lifetime. However, there are many problems bees are facing. They are losing habitats (栖息地). They also get sick easily from chemicals (化学物质) used by farmers and they die because of higher temperatures with climate change. These are all making the number of bees drop.

People are now turning to technology to help save the bees. One example is a project called RoboRoyale. It produces robot bees to help feed and look after the queen bee. This will get the queen bee to lay more eggs and make more bees.