Look at the autumn sky! You can see many dragonflies! Catching dragonflies is a lot of fun. But it is not easy to catch them. This is because they can fly very fast. So, how fast are they? If you are curious to know, please keep reading!
In summer and fall, we can see an abundance of dragonflies easily. There are more than 5,000 different kinds of dragonflies in the world. They can be found in many countries around the world. In the U.S. alone, there are about 400 species of dragonflies.
Dragonflies are quite interesting insects. In fact, they are the fastest flying insects in the world! They can reach a speed of 97 kph! Dragonflies are one of the world¡¯s best fliers, too. They can remain in the air all day without landing!
Dragonflies have four wings. A dragonfly¡¯s wing-span size can reach 20 centimeters. Its four wings allow it to move sideways and backward. A dragonfly¡¯s eyes have 30,000 lenses and can see 360 degrees. About 80 percent of its brain is used to control its sight and process images it sees.
|