All human weight combined is not equal to the amount of food that spiders consume each year
Surely many of us have a fear of spiders. They are monstrous form, very hairy, crawling, many species also poison venom "bite dead".
But recently, experts have also revealed a more frightening fact about spiders, the number of prey they hunt each year. That number falls to about 800 million tons - which is greater than the total weight of humanity.
This hairy pile can kill 800 million tons of insects each year.
If you do not believe in a small math problem: the world's population is about 7 billion people. Suppose each person weighs 70kg, so the total volume will "only" have ... 500 million tons.
Actually, this food is extremely important to ... the safety of the world. Because 90% of the diet of spiders are insects and insects, hundreds of millions of tons of them are pests. According to experts, spiders play an extremely important role in keeping the balance of nature.
"The first calculations show that spiders are the greatest natural enemies of harmful insects," said Martin Nyfeller, a biologist from the University of Basel in Switzerland.
"Along with species such as birds or ants, spiders help significantly reduce insect densities. Without them, the natural environment in the world would be seriously impaired."
To get this result, Nyfeller and Klaus Birkhofer, an ecologist at Lund University in Sweden, analyzed the data from previous studies to determine the amount of spider food consumed each year.
Along with species such as birds or ants, spiders help significantly reduce insect densities.
Accordingly, data from ecological areas - including dense forests, grasslands - have a total of 25 million tonnes of spiders on Earth. With this volume, experts estimate that the amount of food they eat will fall to between 400 and 800 million tons a year.
This figure is even greater than the amount of food that the world's largest species of whales consume. It is known that the number of whale prey is only about 280-500 million tons per year.
"We hope that this calculation will increase human perception, and we need to respect the spiders rather than seeing them as chasing them out," said one of the researchers.
The research is published in The Science of Nature.
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