When people think of beetles, they think they know a lot about them.0:03
With us today is Rob Jones, a scientist who knows everything about them.0:09
So, Rob, how did you get interested in beetles?0:14
Oh, it's an unusual story.0:18
At school, like many other teenagers, I was fond of music.0:21
I even played the guitar.0:24
I loved singing songs of the famous rock band the Beatles.0:28
And once I began to think about how they got their name.0:32
Nobody knows if the name comes from the world of music.0:35
You know, beat, rhythm.0:38
Some people say the name sounds like one of the insects.0:40
This interest in music made me read books about beetles and other insects.0:44
And this was the start of my career.0:49
How many beetles are there on the earth?0:54
Beetles are the largest group of living organisms.0:58
They are common in many different places.1:01
40% of all insects are beetles.1:04
The shortest beetles are less than 1 millimeter long.1:10
The longest known beetle can be 20 centimeters long.1:14
It is about 100 grams.1:18
It is from South America.1:20
Most beetles eat plants.1:22
Some bigger species of beetles eat small birds and even small species of animals.1:25
Other species of beetles eat the dust from wood.1:30
Maybe these are the reasons why some people dislike beetles.1:34
Some beetles may kill millions of trees and other plants each year.1:39
So farmers spend millions on keeping away the Colorado potato beetle.1:44
I wonder if beetles lay eggs.1:48
Like all insects, sometimes in the thousands.1:52
Really, Rob, in your opinion, what is the most unusual fact about beetles?1:56
The beetle is one of the world's oldest animals.2:03
Beetles first appeared about 230 million years ago.2:06
How have they lived for so long?2:11
The answer is simple.2:13
Beetles can change when life around them changes.2:14
How strange and interesting.2:18
We also have a lot of questions about the most dangerous animals in the world.2:20
So next time we will.2:26
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