And the fossils they found suggest that there have been five mass extinction passed in the Earth’s history. And the most well-known mass extinction is the Cretaceous the tertiary mass extinction and this is resulted in the disappearance of the dinosaurs sixty-five million years ago. And if the extinction is part of natural event, why are we concerned about it now? Because the rate of extinction is higher that the natural rate that does not allow the ecosystem to recover or other species to occupy the vacant niches. And it is also because the primary cause of extinction is the human kind that is abusing the nature.
The most recent impact of total extinction was over 65 million years ago when a comet or asteroid wiped out the Cretaceous Period, “The Cretaceous is defined as the period between 145.5 and 65.5 million years ago,* the last period of the Mesozoic Era, following the Jurassic and ending with the extinction of the dinosaurs (except birds)” (Dinosaur Extinction Information and Facts, 2017). Dinosaurs became extinct due to the natural phenomenon; however, sometimes extinction is due to human destruction, in which some species now days are very limited like giant pandas, tigers, orangutan, elephants, whales, etc. “A species is defined as endangered or threatened when it suffers from these factors: damage to its habitat for recreational, or entertainment
Evolution can be the cause of extinction. Tis can be by overpopulation which is when we have a very powerful group kill out an organism. Also, less land for a species can cause the rate of deaths to be greater than the births. Then, if the new species is to strong it can mess up the entire food chain. This proves that evolution may cause new species but, it isn’t always good.
We are living in currently in the Holocene era. As we observe the planet around us many of us noticed plants and animals are endangered at an amazingly fast rate. The result of the mass extinction is fortunately not going to be Metroid or volcanic activity. Unfortunately, the cause is most likely to be climate change due to all the humans activities currently happening, for example, all the fossil fuels we are burning like coal, oil, and gas. All these extra fumes build up in the air building up greenhouse gases, therefore the earth's surface temperature begins to rise.
People could be exploiting animals for solely human purposes, and may cause individuals of the de-extinct species harm. Their habitats and food sources have changed, so their roles in ecosystems could be, too. De-extinction can distract other other science fields, such as medical research (D-Brief,
An extinction of one species could threaten many other populations. It's too late for some breeds, but with enough action to combat wildlife crime, poaching can be eliminated. It is our job as the human race to reverse the severe damage we have caused in order to sustain the balance of Earth's delicate
In honors biology, we watched a film called Racing Extinction. In this film, we learned that humans are the main reason that species of plants and animals all over the Earth are becoming extinct at a rapidly fast speed. The men in the film showed statistics and images that were mind blowing, that I had absolutely no idea about. Humans are more destructive than we think, and we need to do something about it before it is too late. When most people think of the word “extinct”, they relate it to animals, instead of plants.
Species extinction has been one of the most serious environmental issues since the past centuries. Scientists have estimated that the current extinction rate is between one thousand to ten thousand times higher than the natural extinction rate. Every year, between 0.1 and 0.01% of species become extinct (Chivian & Bernstein, 2008). However, with recent breakthroughs in stem cell research, there is a glimpse of hope that this situation is about to change. The developments in bioscience technology has allowed for extinct species to be revived through methods of cloning, selective breeding and genetic engineering.
It can be able to destroy all the civilization easily by causing a lot of harming effects. It can cause the changing of the temperature to make a lot of living things cannot be adapted with t new habitats. Then there will be a lot of extinctions on Earth. Now the scientists have predicted that the next animal will extinct may be Polar bear because their population is very small now and the activations of global warming also affect those populations. There are also other reasons why polar bears will be extinct like the human activities.
A dark future Today, the possibility of a sixth mass extinction is not negligible. According to the numerous issues that our environment is facing nowadays the eventuality of another cataclysmic event for species biodiversity is probable. Considering the phenomena of land use change, overexploitation of the natural resource but also the degradation of the global climate due to the pollution of the natural environment. Those different factors are key elements in the cause of another dramatic event for species. Land use Change Population are increasing progressively and in order to feed the entire people, human are transforming the environment witch has huge consequences for species.