What is the main reason that mammals underwent adaptive radiation after the demise of the dinosaurs?…
First of all, the author states that this kind of dinosaur mainly ate plants which could not live during winter, so they have to migrate to find food. But the lectrue argues that it was warmer at that time. There was 24 hours of sunlight during summer, so there were many plants. In winter, there were many dead plants containing many nutritions which could be eaten by this kind of dinosaur, so that they did not have to move to warmer places.…
Sereno, Paul C. "The Evolution of Dinosaurs." The Evolution of Dinosaurs. N.p., 25 June 1999. Web. 12 Dec. 2012.…
There were many different theories that arose in regards to how dinosaurs became extinct. Some of the theories are floods, ice ages, poisoned food supply, etc. However, what most likely happened was a meteor crashing into the planet. The meteor caused an immediate impact on the life that it hit directly, causing them to vanish. The after effects were a drastic climate change and the fact that the meteor most likely caused a sonic boom that also ended the lives of many other animals. After the meteor hit, it probably caused volcanoes and made much of the land uninhabitable due to wild fires. Additionally, after this period of heat there was chance of a period of cold and dark. Together, this all combined was the reasoning behind why the dinosaurs, and most life went extinct, despite being in their prime and the most diverse they had ever…
Paleontology is particularly important with regard to scientific theory, since for many children dinosaurs are the first exposure to scientific concepts…
The fossils were found nearly every continent. Fossils are still being examined and observed today. Dinosaurs are closely related to the modern birds, who are warm blooded. New evidence has showed that dinosaurs have been known to be cold blooded but evidence has showed differently. New evidence shows dinosaurs regulated their body temperature from an internal stance than using the environment to help regulate their body temperature. Dinosaurs has homologous features of other animals of their time. Research supports that dinosaurs are warm blooded.…
Comparison of the physiology of fossils to present day organisms have showed relationships between the organisms…
Dinosaurs, theropods especially, fit in-between crocodiles and birds on the evolutionary scale. This relationship shows that theropod dinosaurs could have some of the traits of reptilian crocodiles and birds. The fact that theropod dinosaurs are in-between crocodiles and aves leads to the assumption that theropod dinosaurs were warm blooded so that they could transition to birds. Homoeothermic tendencies in theropod dinosaurs can be determined from the physical data of brain cavity size, feather impressions, the nesting tendencies, and the breathing anatomy of the theropod…
There are many theories on how dinosaurs became extinct but scientists have not yet found a proven reason why. About sixty-five million years ago Dinosauriformes, or as we call them Dinosaurs, walked and roamed planet Earth. These massive carnivores, herbivores, and omnivores lived many years on earth before humans appeared. There were several variations of dinosaurs such as land, sea, and air dinosaurs. For a millions of years the dinosaurs thrived in their environment. They had an abundant food supply to eat and they had ample space to roam and reproduce offspring. Unfortunately the dinosaurs did not last forever since they all mysteriously became extinct. Three of the main theories on how dinosaurs became extinct are climate changes, an asteroid impact, and massive volcanos erupting.…
In the movie Jurassic World, the hero reveals how as humans we persevere when times get tough. If things get tough then people try even harder to overcome their goal(s). Throughout the movie no one had know that the dinosaur was as dangerous as it was. The dinosaur was smart, it could camouflage, and it was a good fighter. Throughout the movie it got harder and harder it seemed to take down the dinosaur because it kept getting stronger.…
Dinosaurs first appeared around 245 million years ago, and they lived for 180 million years. Then suddenly, 65 million years ago they went extinct. Not only did all the dinosaurs die out, but also up "to 75% of all marine genera were lost" ("mass extinction"). This leaves scientists wondering about what could have led to this mass extinction in the Cretaceous Period. They have collected evidence from fossils and earth’s geography, to propose some theories Scientists believe that the dinosaur extinction was due to either the collision of a massive asteroid, the eruptions of the Deccan Trap volcanos, or the epidemic of diseases.…
225 million years ago, dinosaurs ruled the Earth. Raptors, such as the Velociraptor, made known by Jurassic Park, were one species of the many dinosaurs that roamed the Earth. Through many films, these creatures are portrayed as intelligent, savage beasts. However, studies may have proved these films wrong. They have shown that there are more types of raptors than the Velociraptor, different ways that they hunted their prey, and if and how they were able to communicate.…
Dinosaurs have big bodies and small brains, when you step inside of a vehicle you now have a big…
1. International marketing is the performance of business activities designed to plan, price, promote, and direct the flow of a company 's goods and services to consumers or users in more than one nation for a profit.…
It has been established from early age that each gender plays a different role in society. Feminism is believing in the economic, social, political, and intellectual equality between both men and women, not female supremacy. In Breath, Eyes, Memory, Edwidge Danticat expresses the theme of feminism by creating characters for whom bravery, strength, and education are significant values. Bravery is a powerful value for the characters in the novel. In Haitian culture, people view bravery as a characteristic that only men are able to possess but, Danticat accentuates braveness through the character of Martine.…