Extinction Of Species Essay

mass extinction? Many say yes, but there is also hard evidence saying no. Nonetheless, scientists can prove five mass extinctions in history. The first mass extinction happened roughly around 445 million years ago. It was named the Ordovician Extinction. The species affected were known as Graptolite, which are different types of sea creatures. Their demise on Earth lasted around only one million years. Around sixty to seventy percent of the species disappeared, and now the remaining species have

deforestation, invasive species, or climate change, there is one thing completely clear. The Earth is currently in the middle of a sixth mass extinction, and it’s been caused by the human race. It’s clear that a great extinction is coming from the evidence of the destruction of other species around us. The choices made by the human race have too often negatively affected the species around them. Tracy Wilson, in an article for animal planet, states that “...frequent… headlines that warn of species that are dying

A species is a reproductively compatible group of organisms that can interbreed and produce fertile offspring (Reece-2011). All species play a vital role in ecology. Ecology is the study of how organisms interact with each other and their environment (Merriam-Webster). When more species are discovered, more pieces of the ecology puzzle are unlocked. Scientists are able to put these pieces together and create charts such as food webs, energy cycles, and levels of organization. These charts demonstrate

In evolution species come and go, they live and compete and die out. Extinction is important to evolution because it creates new species and new forms of life. Conditions change such as climate change, a new predator arrives and other geological effects that affect the way a certain individual species change and or die out due to not being able to adapt. Dinosaurs were dominant until they fell than Mammals begin to evolve and adapt. I do believe that mass extinction is happening today and if not

cases where species go extinct due to humans or for uncontrollable reasons. Recent scientific development has allowed a new idea called de-extinction the act of cloning extinct species using DNA samples from the past and biotechnology. However, extinct species should not be brought back to existence as the idea of de-extinction diverts attention and funding from protecting many endangered species that can still thrive in their environment. Another issue that arises with de-extinction is that resurrected

information about the causes of population declines which driving species on the brink of extinction (). However, it is pointed out that the causes of vulnerability remain unclear to explain the variation to the risk of extinction (). According to Reynolds (2003), vulnerability is determinate by both the decline of species population and the reduction of their geographical range. These two forms of vulnerability are affected by both species’ mortality and habitat loss, which are the causes of intrinsic

Approximately 66 million years ago, the first, and most recent extinction event of ‘the Big Five’ took place- the Cretaceous-Paleogene (K-Pg) Extinction, also known as the Cretaceous-Tertiary (K-T) Extinction. While this event is known primarily for its involvement in the extinction of dinosaurs, it also had quite the effect on a large majority of other plant and animal species, to the point where no tetrapod (four-legged vertebrae) weighing above 25 kilograms survived. The original trigger is

Endangered Species Act When people hear the word extinction, most think of the unfortunate faith of a leopard, elephant, or bird. But the sad truth is that they are a small portion of the extinction crisis. According to WWF, the rate of species extinction “1,000 times higher than the natural extinction rate” (Para. 2) and humans are part of the cause. To solve such problem, the United States passed a law known as the endangered species act (ESA) in 1973 under the Nixon administration. The purpose

“De-extinction, or resurrection biology, is the process of creating an organism, which is either a member of, or resembles an extinct species, or breeding population of such organisms. Cloning is the most widely proposed method, although selective breeding has also been proposed. Similar techniques have been applied to endangered species.” (Wikipedia) Scientist should not de-extinct species because people could be exploiting these animals solely for selfish purposes. Ultimately causing individuals

Imagine a world where no human had the chance to live or have a life for themselves. There are many species that get to experience what was just described. Lives are a thing of both the present, past, and future and all eventually fade away. However, scientists through many, many years have tried studying ways to bring back these lives. This idea and theory is called de-extinction. Many believe it to be an amazing thing to possibly have, and millions more believe it to be a terrible idea. Those