In hot summer, flies and mosquitoes have become the most familiar insects in people’s life, especially annoying flies, buzzing past. Just finished enjoying their “delicacy” from the toilet and cleaned up the delicacies on the table. I don’t know if you’ve ever thought about such a annoying fly. People will eat their stomachs if they’re a little careless, but flies eat haisai so recklessly, but they never get loose. Why on earth?
The life of a fly goes through four stages: egg, maggot, pupa and adult, and it reproduces very quickly. In hot summer, they can produce once in eight days. A female fly can produce more than 1000 eggs at a time. After five months, the number of offspring can reach 190 trillion. Only a fly can carry more than 6 million bacteria and can spread more than 30 diseases such as enteritis, tuberculosis, dysentery and typhoid fever. But the word “get into trouble” is not appropriate here, because flies themselves will not be infected with these diseases. Scientists have found that in the process of fly growth and development, larvae will synthesize a special protein, called antibacterial active protein, which makes it immune to pathogens and become the bane of various pathogens on flies.
According to the determination, this antibacterial protein needs only one tenth of a concentration to kill a variety of bacteria, which is more effective than penicillin. Many harmful bacteria can only live in the digestive tract of flies for five or six days.
So what other scientific value does a little fly have? Let’s continue to look down.
According to relevant records, a research team of Tokyo University in Japan confirmed that a bioactive substance released by flies can inhibit “osteoclasts” and treat human osteoporosis. The researchers found this physiologically active substance in the compound after inserting a needle dipped in E. coli into the fly. The substance named “5-S-GAD” can hinder the formation of protein phosphorus oxidase. Protein phosphorus oxidase can promote bone marrow cells to differentiate into osteoclasts that damage bone and replicate oncogenetic genes. Osteoporosis is caused by the active role of osteoclasts.
Let’s see how little flies help people solve cases.
Flies have the bad habit of smelling incense and expelling odors. They like to eat rotten and smelly things. After the murder, if it takes a long time to solve the case, the death time of forensic identification has become a thorny problem. At this time, the larvae of flies living in rotten corpses help mankind! Because the growth time of fly larvae has a certain law, people can judge the death time according to the development degree of fly larvae after the body rots, and flies become “witnesses”.