When I watch the movie Jurassic Park, most times I just pop a bag of popcorn and curl up on the couch and heck, just enjoy a great movie. But last Monday when I had to choose a topic, I thought of that movie. Minus the humans running away and being eaten, dinosaurs and modern day organisms are very different! I guess that is why I choose this as my topic mainly because I knew I could write a lot about it.
Organisms have evolved greatly in physical and mental categories since dinosaurs.
Dinosaurs were creatures of brute. A lot of these dinosaurs did not have a brain bigger than an average apple. Dinosaurs were not the first reptiles to rule the Earth. Other creatures were around and evolved before the Mesozoic Period. In fact the first bigger reptiles were archosaurs and therapsids. One of these was a regular crocodile which still exists today.
As you all may know, it is not concluded yet, but theory states an asteroid collided with the Earth and wiped out almost every living thing. From that the remaining of the population evolved into what is known as the Cenozoic Age.
The Cenozoic Age is not only the age of mammals but man as well. Beginning this age was the first larger mammals and primitives. Then as time progressed, rodents and other mammals appeared. By the Oligocene Period pigs, deer, cats, rhinos and other modern animals we know to this day had appeared. Man also evolved from apes in this period of time and were known as the first primates ever to roam the Earth. Then 2.4 million years ago the Great Ice Age occurred. When many people picture the ice age, they connect it to the Great Ice Age, but there was actually many ice ages in history, even when dinosaurs ruled the Earth. From this Ice Age a gigantic glacier formed which moved slowly but destroyed everything in its path. During this great ice age, many animals moved south from this glacier in order to survive. After this Ice Age, the remaining animals repopulated the Earth.
Since the Ice Age, 11,000 years ago, man has evolved greatly. Our knowledge is greater than any other species. This knowledge has perfected us in arts, architecture, foods, and many more modern actions in our lives. Animals have evolved greatly as well, size especially . No other animal on this Earth has exceeded the size of a blue whale. Most animals around us do not stand taller than us humans. There is many great changes physically and mentally in organisms since dinosaurs.
“Geologic Time Scale” enchantedlearning.com. Zoom Astronomy. N.A. 3/8/12.
“10 most important dinosaur facts” about.com. About. Bob Strauss. N.A. 3/8/12.
Picture-”Dinosaurs died from sudden temperature drop ‘not comet strike’, scientists claim” www.telegraph.co.uk. The Telegraph. April 24, 2010. 3/8/12