Extinction events

Before I start my speech, I want you guys to do something for me. I want you to picture your favorite place outdoors. It can be anywhere. A place you visit frequently, or even a place that you’ve been once, or even just seen in a picture that left a memory, or an imprint in your mind. I want you to picture the animals, the greenery, the fresh air that fills this place. Imagine how many people, and organisms that this one area has affected, and how many of these organisms depend on this place to survive

discusses the fact that Earth is on verge of a sixth mass extinction and humans are the reason why. Host Miles Traer cites that humans are behind the biodiversity crisis today because of our superior hunting skills. Before getting into the current threat of mass extinction today, the five previous mass extinctions were outlined. The first mass extinction took place 450 million years ago at the end of the Ordovician period. This extinction took place because the planet’s climate changed from warm

drives evolution. Evolution is a weird thing that leads to being a leader in the food chain but is caused in a catastrophic way. Extinction drives evolution in many ways, some being the pure and lucky survivalist. Extinction drives evolution because when a species goes extinct another rises, survival of the fittest, and adapting to the environment faster than others. Extinction drives evolution when a species goes extinct and another one rises. An example of a species being wiped and another having the

There have been 5 mass extinctions in Earth’s existence. The names of these are (from most recent to least recent): Cretaceous–Paleogene, Triassic–Jurassic, Permian–Triassic, Late Devonian, and Ordovician–Silurian. The most well known mass extinction, Cretaceous-Paleogene, was theorized to have occurred through a massive comet or asteroid impact. A cold winter created by the impacting object forbid any plants and plankton to carry out photosynthesis. During this time, about three quarters of all

that survived the dinosaur extinction are believed to be what life on this planet is descended from. Aligators, crocodiles, lizards and snakes are among the reptiles that survived what dinosaurs couldn’t. Birds also survived, and are the only descendants of dinosaurs that survived the mass extinction other than lizards. Frogs and salamanders are among the few small amphibians that survived. Mammals also survived and they are the largest group to survive the extinction. Over 50% of the world’s population

with problems like the big problem itself. THE BIODIVERSITY PROBLEM Over the last half billion years on Earth, there has been five mass extinctions which succeeded in wiping out ninety-five percent of the planets species. Some experts believe that we are on the verge of the sixth mass extinction. For example, journalist Elizabeth Kolbert, author of The Sixth Extinction, believes that humans are “living in a time of very,

How did these dominated and gigantic creatures really die? Was it a slow extinction through natural causes, or did it happen suddenly? These questions give rise to many different beliefs on how the dinosaurs disappeared over sixty-five million years ago. Something happened sixty-five million years ago, at the end of the Cretaceous period that was so devastating that it altered the course of life on earth. Extinction is easily defined: the birth rate fails to keep up with the death rate. However

they are in the process of driving much of it to extinction. If this pattern continues, many animals children have grown up seeing, loving, and dreaming of will be stuffed in museums and observed just as dinosaurs are now. Extinction is the natural path of all species. All species are either being developed, extant, or in the process of becoming extinct. However, there have been 5 times in the earth’s history in which a tremendous amount of extinctions took place in a relatively short period of time

Chapter 2: In chapter two of The Sixth Extinction the book explains how extinction is one of the first scientific concepts that children learn in school. Also, it talks about how children in the modern times know more about extinction than scientists did hundreds of years ago. Scientists first theorized the concept of extinction in the late 18th century. In this chapter the book also talked about how a naturalist named Georges Cuvier studied the fossils of an extinct animal called the American Mastodon

Jacob Marek Clinton Hale English 1301 5/15/17 Sex, Drugs, Disasters and the Extinction of the Dinosaurs The extinction of the dinosaurs, absolutely a thrilling topic. In Steven Gould’s persuasive article he goes into great detail to describe the nature of science and it’s profound nature to help us in the pursuit of knowledge when used correctly. He then begins to describe three scenarios in which could’ve led to the extinction of the dinosaurs in which two while seemingly plausible at first glance