Cretaceous–Tertiary extinction event

another, without the other they could not occur. If the extinction of the dinosaurs was gradually over millions of years “both process probably played a role”(DinoBuzz). Most scientists do agree that an asteroid was a factor, it’s also acknowledged thaDinosaurs roamed the earth for 163 million years.(Dinosaur Worlds). They thrived as one of the most successful groups of animals in the history of life on land(PBS). Then, 66 million years ago, the last group of dinosaurs disappeared forever;…

composition by Stephen Jay Gould, the hypotheses of dinosaur extinction are intermingled with the all-consuming thoughts and dilemmas that plague much of the modern society, including: sex, drugs, and violence; as well as one great unknown- how dinosaurs became extinct. Gould adds the public’s lust for outré, controversial statements with real, scientific inferences. Plaguing the world with questionability, the explanation for the dinosaurs’ extinction is still unidentified, but Gould…

Have you ever wondered what the other half of the world was like? Just like a person can wonder what the 96.5 of the earths water was like. Talking about the mysterious ocean. Did you know it might actually be possible for us to have living dinos in the water, want to know why? Because of the whole theory that a meteor hit earth and killed all living dinos except for some that water dinos were fine and didn’t get effected. So one-day u can discover a megalodon eating your butt But that…

struck by cataclysmic events, ones so severe and swift they obliterated most living things before they ever had a chance to adapt. With the developing technologies and industries, humans now possess the ability to impact the Earth immensely. In the articles, “Numerous Signs Point to Parasite Mass Extinctions” by Tracy V. Wilson and “Mass Extinction and Biodiversity Loss” by David Hosansky, are concerned on this topic and explain how the Earth is on the brink of a sixth mass extinction. Both…

Dinosaurs were said to be extinct. Said to be gone two-hundred thirty million years ago. Though, Michael Crichton uses his amazing writing skills and universal theme to bring these ancient animals back to life. In the book Jurassic Park, paleontologists, doctors, lawyers, and two children venture off to Costa Rica to see what elder John Hammond and his money has been up to for the past five years. When they arrive one day they could not believe what they saw. Humongous dinosaurs roaming around…

In The Sixth Extinction, by Elizabeth Kolbert, the author stresses that if no changes are made to the world in which we live today, that a mass extinction will occur. Kolbert reveals that species are becoming extinct at a rate that is similar to those of preceding mass extinctions. Most importantly, if the destruction and contamination of the natural world continue at the same pace then it will conclude with the end of humanity. Similar to the extinction of dinosaurs 65 million years ago,…

Some examples of macroevolution include the impact that mass extinctions have on the diversity of life, the appearance of terrestrial vertebrates through speciation, and the basis of key adaptations. An example of this is flight in birds. Another example of macroevolution is a species named Primula kewensis, which came into existence because of the crossbreeding of two hybrid primrose species, Primula verticillata and Primula floribunda. Sedimentary rocks We do not know the actual, or…

first and most evidence backed theory is called the K-T event theory. This theory was created by a father and son duo Luis and Walter Alvarez. “In the 1980s, father-and-son scientists Luis (1911-88) and Walter Alvarez (1940-) discovered in the geological record a distinct layer of iridium–an element found in abundance only in space–that corresponds to the precise time the dinosaurs died. This suggests that a comet, asteroid or meteor impact event…

forests of South China until climate change struck. The fruit eaters failed to adapt to the new dominant food sources of grass, roots, and leaves. Evidently, they soon went extinct because they refused to take a risk and change their diet. This extinction represents the consequence of not taking a risk, and if humans do not take risks today by exploring Mars, it could lead to the same unfortunate fate. Mars, also known as The Red Planet, is the fourth planet away from the sun. Recently, the…

About 542 million years ago, an event known as 'The Cambrian Explosion' also known as 'Cambrian Radiation' occurred. It began in the Cambrian period which took place during the Paleozoic Era 542-251 million years ago. It is one of the most significant episodes in the history of life (Conway Morris, 2006). The Cambrian Explosion changed everything. Prior to the Cambrian Explosion, large animals were soft-bodied. Palaeontologists discovered fossils which accounted for approximately half of all…