Recent extinctions

Mass extinctions events have been going on for more than 443 million years. So far there have been five big events. Although the notion of mass extinctions has always been present, the usage of statistical methods to efficiently backup extinction data did not start until the 1900s. For the scientific community, mass extinction is the combined term that designates the extinction of a wide number of species disappearing in a relatively short period of time, although it does not account for its precision

Overkill hypothesis, considers that humans were the sole contributors to the Late Quaternary extinction of megafauna that happened in the last 50,000 years in various continents, mainly in the Americas and Australia. According to Martin, as humans started colonizing new areas of the world, they introduced predators, competitors and disease vectors. Due to such introductions, the megafauna faced extinctions as they were hunted for food and clothing, caught diseases brought on by the humans and new

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 species could become pests

increase in numbers significantly, having destructive effects on many elements of the native environment. The Rattus Rattus is native to India, but it has spread to almost everywhere in the world. This rat has directly caused, or contributed to, the extinction of multiple wildlife species including a variety of birds, plants and other small mammals. They’re blamed for the incredible decline in seabirds on several islands, including many Hawaiian species Some introduced species (such as most of our food

The Ethics of De-Extinction The concept of bringing a species back to life after it has gone extinct has been around for years. The idea that dinosaurs will roam the earth again has fascinated mankind since the first dinosaur fossils were first put together. Pop culture has even glorified this idea in a variety of books and movies made about the topic, such as the famous Jurassic Park trilogy. In science fiction, there are many ideas people have about brining the extinct back to life. Some of these

Pleistocene has been link with the extinction of large mammals, this extinction has been identified as a human-driven process since Paul Martin saw a contributing link between the extinction of large mammalian species and the appearance of humans. However, this does not mean that megafauna was not going to become extinct without human interference. This essay will provide detailed analysis and assessment of the Overkill hypothesis, which argues that the megafaunal extinction in America and Eurasia was caused

cannot blame Africa for the extinction of many of it’s animals, we have to blame the trophy hunters who have massacred these beautiful animals. The reason why trophy hunting should be banned is because of the risk many animals face of going extinct and because of the lack of respect it has towards animals. It is also driving us into our sixth mass extinction. Trophy hunting should be banned because it is cruel and is driving certain animal populations into extinction. The author, Louisa Lombard’s

How would you feel if some of your favorite animals became extinct? Throughout history animals have always struggled to survive. In recent years, many studies have shown species are becoming extinct for different reasons. Some species endangered status are created by competition with other species, natural disasters, diseases and even human involvement. These endangered species should be preserved because of the effects it has on other animals, the significance of each animal on the ecosystem, and

these questions can be answered – but first we must find a way to counteract that most pressing environmental issue of the day: extinction. Lest those creatures we're only beginning to understand vanish, along with whatever language and culture they may possess beyond our understanding. The language and culture of animals is not the only thing threatened by extinction. While our own human race is obviously in no danger of dying out, important aspects of our culture and even our languages are dying

Biology Issues Investigations: “Should we bring back the woolly mammoth from extinction? Or should we not tamper with the past and leave things how they are? Why do humans go to such extents to protect endangered species? The same questioning applies to species brought back from extinction; it is to preserve biodiversity, to restore deserted and destroyed ecosystems, to advance the science of preventing extinctions, and to undo harm that humans have caused in the past. Additionally, the prospect