The history of mass extinction The earth history of 4 billion years witnessed five mass extinctions and some scientists believe that we are on the verge of the sixth mass extinction . And in the early stages of the escalation process. The recent or fifth annihilation occurred at the Cretaceous and Tertiary boundary of 65 million years ago. Since the early 1980's, images of asteroids colliding with the planets destroying populations of dinosaurs are circulating. [2] As a recent mass extinction, thousands of scientists around the world investigate it,
Evidence from the fossil record shows that there was at least five extensive species extinctions in the history of the earth. Mass extinction is a place where large numbers of species disappear in a relatively short time. The most famous example is Cretaceous - Tertiary mass extinction. By this, the dinosaur disappeared 65 million years ago. Internationally, the loss and deterioration of habitats are considered to be the most important factor. The biggest threat in New Zealand is the introduction of species. Other factors include abuse, pollution, disease, and climate change. Depending on the species, it may be affected by various factors. Species with very limited habitat or few populations are particularly afraid of extinction
More and more scientific thinkers believe that the earth is in the midst of the sixth mass extinction in its history. Mass extinction events are periods where abnormally numerous animal species die simultaneously over a period of time, which is much shorter than the time range that can explain the rate of "natural" extinction through the evolutionary process. Seeds are replaced by new species living in niche. Therefore, mass extinction cases can occur for hundreds of years, thousands of years, millions of years, and as regards the history of evolution this time frame is short.
Mass extinction is probably the most confusing event among many wonders and unknown incidents that have occurred on Earth for millions of years. Mass extinction is accompanied by a large loss of flora and fauna species in a short period of time. These events mature the earth and gradually disappear as new species grow. Scientists have discovered at least five different large species limbs called Big Five. And they historically lost between 50% and 75% of their lives. As to how and why these moments succeeded countless questions remain unresolved. The following are the information collected by experts so far.
There were five major extinctions in the history of the earth. In the worst year of 250 million years ago, 96% of marine life and 70% of terrestrial life died. Only about 1,000 survived with drought on the earth. Today, many scientists predict that the sixth mass extinction is occurring because humans have destroyed the environment. This mass extinction of this kind of the Earth is the greatest injustice created by mankind.