According to foreign media reports, the consensus of scientists on the new coronavirus is that the virus evolved in animals and then transferred to humans in some way, and thus acquired the ability to connect and replicate with human cells. Humans can even infect cats and dogs. In fact, the new coronavirus may have a significant impact on it without infecting different species. < / P > < p > the lives of as many as 500000 sharks may be at risk because the world is scrambling to develop a new crown vaccine, which requires a substance produced by shark liver to function. It is understood that shark livers produce a substance called squalene, a natural oil that is often used as a vaccine ingredient. It’s called an adjuvant and improves the effectiveness of major vaccine compounds by producing a stronger immune response. It was learned that GSK used shark squalene in influenza vaccine. In May, the company said it would produce one billion doses of squalene adjuvant for use in the new coronavirus vaccine. < / P > < p > according to the report, about 3000 sharks are needed for a ton of hornene. California based shark allies estimates that 250000 sharks will be killed to get squalene so that people around the world can get a dose of the new coronal vaccine. Most of the vaccine candidates will need a second injection every few weeks, so the number of shark deaths will double to 500000. It is not clear how long the immune response will last after vaccination. “Collecting from wildlife will never be sustainable, especially if it’s a top predator that can’t reproduce in large numbers,” says Stefanie brendl, founder of shark allies < / P > < p > “there are many unknowns about how long the epidemic will last, how large it will be, and how many versions we will go through. If we continue to use sharks, the number of sharks used in this product may be very high year after year.” It is reported that environmentalists estimate that about 3 million sharks are killed every year because of squalene. Squalene can also be used to make cosmetics and oil. That is to say, the additional demand for the new crown vaccine may endanger the livers of some animals, which are particularly rich in squalene. Spontaneous combustion at a Guangzhou Motor vehicle intersection and other traffic lights in Shenzhen