species

Mass extinction, which sounds great. The earth has experienced it five times From a dialectical point of view, everything has two sides, and so does the mass extinction. For life on earth, every mass extinction is both a disaster and an opportunity, because no mass extinction can destroy all life on earth, and after the disaster, new life forms will usher in new development opportunities. The first mass extinction in Earth’s history occurred at the end of the Ordovician period 440 million years ago. In this disaster, about 85% of…

According to the data reported by the national culture and Tourism Department, 160 million people traveled during May Day in 2022, only 30.2% lower than that during May Day in 2021, and the domestic tourism revenue was 64.68 billion yuan, only 42.9% lower than that during May Day in 2021. This is a three-year decline since the outbreak Let’s look at another set of data. According to the statistics of the Ministry of communications, the number of flights during May Day is about 20% of that in 2021 In the…

Like any celestial body in the universe, the earth on which human civilization depends will eventually become a wisp of smoke in the eternal universe and disappear into endless darkness. As a species on this blue planet, human destiny is even more pessimistic. Destructive nuclear weapons, increasingly serious ecological crisis, global warming and other factors are accelerating to put human civilization in the final outcome of self destruction. When can mankind escape the earth and become a real interstellar species, so as to continue the hard-earned brilliant achievements of civilization?…

Scientists have long been studying ways to revive extinct species. Many of us can ride the giant mammoths in the fantasy film and television, and there must be many people who can ride the giant mammoths in the sky. But some species must not be brought back to life. Besides dinosaurs, there are many other species with great danger. Today, let’s talk about several ancient dangerous creatures. My friends are curious about the content. Let’s take a look at the article next. The first species: hyenas The Permian period before…