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The smiley spider is a species of spider with a smiley face pattern on its body in Hawaii, USA, and scientists believe that this unique pattern is used to deter other predators. Experts say the spider is still non-venomous. The spider, whose scientific name is Theridion Grallator, is only a few millimeters long and is not venomous.
It is found in the rainforests of the Hawaiian Islands in the Pacific Ocean and is threatened with extinction.
Oxford, a senior lecturer in the Department of Biology at the University of York in the United Kingdom, who has been studying spiders since 1993, said: "When I turned over the leaves and saw them, I couldn't help but laugh. There are many theories as to why this spider has this pattern.
One of the theories is that it is trying to confuse the predators. This is because when birds or other predators see their prey, they usually think about it before deciding whether to eat it. The spider grows such a pattern, perhaps to deter predators and wait for an opportunity to escape.
This paragraph smiley spider - survival.
Smiley spider. It is reported that this spider can only be found in the rainforests of Hawaii, and its survival is threatened by alien animals. Experts explain that humans introduce exotic species of plants and animals to Hawaii every year, and they are threatening native species in Hawaii.
This paragraph smiley spider - relevant information.
The echinophrenia is also a different and beautiful "smiley spider".
Rare "human-faced spiny spider" has a smiling face From the ** point of view, there are six spines on its hard abdomen, and the prominent thorns match the markings on the body to form a vivid face, and it seems to be smiling. As the director of the West China Insect Museum, Zhao Li carefully identified and determined that this spider is called "Ku's echinopathy", which is distributed in Taiwan and Zhejiang, China, and is the slowest type of spider, which is the genus of echinophrenia of the garden spider family, which is very rare in western Sichuan and has not been recorded before. According to Zhao Li, the six spines on the hard abdomen of the spiny spider are generally brightly colored.
The special pattern that looks like a human face is actually a "tendon point" formed by the junction of the spider's muscles and shell. In Chengdu, there are also some species of spiders with human face patterns, ranging from children to old men. With the exception of the echinophrenia curoni, the other human-faced spiders are all in the family Crabaceae.
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Beneficial pests and pests are never absolute. The biggest pest on the earth is humans, and many experts see it as a revenge of the laws of nature for human "aggression".
Spiders are neutral in their natural environment and do not care about beneficial pests, such as spiders in the South American rainforest, which are in the middle of the food chain, and are food for many reptiles, amphibians and birds, as well as predators for many other small arthropods.
Compared with human production and life, spiders are friends of human beings and are classified as "beneficial insects". Mainly because it preys on a variety of "pests", such as mosquitoes, moths, termite adults, etc., some species are also natural enemies of forest pests, such as a small spider in the cypress forest area (the word shu di is too rare to spell out) in the Yunnan pine caterpillar pupa, which plays a positive role in inhibiting the outbreak of Yunnan pine caterpillar.
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It's a good insect, eat mosquitoes, flies, etc., don't look at it, don't think that people are bad drops.
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It's a beneficial insect, it's a must.
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Except for the net, which is very sticky, the rest is still very good, eat mosquitoes.
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Well, beneficial insects. However, I saw it, and I panicked cautiously.
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yes, he catches pests for us and saves me from mosquito bites.
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Spider beneficial insects are also harmful insects, such as white-fronted stilt spiders, preying on cockroaches, flies and other insects, while spider mites are of course pests that eat crops, which should be defined by whether they are harmful to human activities. For spiders, it's nothing more than a normal survival behavior.
Most spiders prey on insects, so they are mostly beneficial insects. In addition, spiders are arthropods, not insects.
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The food in some places is peculiar, such as eating centipedes and scorpions, so can spiders eat them? Is it a beneficial insect or a pest:
Can spiders eat it:
Some spiders can be eaten, of course, as long as you are willing to eat, such as fried poisonous spiders, a black long-haired poisonous spider produced in the Sukhat region of Cambodia, has recently become a delicacy on people's tables.
According to local vendors, when business is good, they can sell 100-200 large spiders a day.
According to reports, as long as this spider is accompanied by garlic and salt and other seasonings, and then fried thoroughly with boiling oil immediately, it will immediately become crispy and delicious, becoming a "supreme delicacy", so that many outsiders have brought many of these "treasures" home to taste slowly after rushing to Sukun to "feast".
Are spiders beneficial or pests:
According to the definition of beneficial insects, spiders are judged to be beneficial insects. The vast majority of spiders are no more poisonous than bees, that is, they are basically harmless to humans.
That is to say, in terms of toxicity, domestic spiders will not be more threatening than some poisonous insects, and even if they are poisonous, they will not be life-threatening (except for severe allergies), and it is very beneficial to eliminate mosquitoes.
And spiders are carnivorous, these spiders on the roof can prey on small insects at home, such as mosquitoes, flies, etc., from this point of view, it can be regarded as beneficial insects.
The only downside is that once the spider gives up its web, it tends to accumulate some dust on the web.
It turns out that spiders are also beneficial insects.
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Spider mites and some blind spiders are pests
Everything else is a good "worm".
Spiders are not insects, they are animals).
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Beneficial insects, of course
Do you help humans get rid of mosquitoes Hehe.
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Spider webs have two major benefits: one is to tell us that it's going to rain; Second, some pests such as flies and mosquitoes stick to the web, which will become a delicious meal for spiders and eliminate pests for us.
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Beneficial insects and pests are just a difference between people's thoughts, you think that the wax cong is a pest, it is a pest, you think it is a beneficial insect, the spider has a way of self-defense that belongs to the insect, it eats flies, and the mosquito belongs to the food of the bureau
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Beneficial insects and pests are just a difference between human thoughts, you think it is a pest, it is a pest, you think it is a beneficial insect, a spider is poisonous that belongs to the self-defense of insects, it eats flies, mosquitoes belong to its food,
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I think some of them are, some of them aren't.
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Needless to say, there are all primary school textbooks! Spiders weave webs, catch mosquitoes or something.
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