Theoretically, birds are said to have evolved from small carnivorous dinosaurs by fossils discovered in China, South America and other countries. The fossils were looked with different perspectives than initially, and by analyzing them with special methods. The first known bird to man was the Archaeopteryx, which was discovered around the early 1860s. It had feathers exactly like current day birds however, had teeth, a long bony tail and other factors that put these recognized characteristics under the reptile category of a specific species; dinosaurs.
There is much evidence that supports the link between dinosaurs and birds. As stated before, the Archaeopteryx is one of scientists’ most valuable sources of evidence and this bird was analysed
To compare the impact of evolution on different organisms a study was conducted by: carefully examining the species of birds with each other. This was accomplished through using a sample population of 200 birds. Moreover, there were other factors that were taken into account (in order to ensure objectivity and accuracy). The below table is illustrating those factors that were considered to be the most important during this study. ("Evolution Lab," 2012)
Nathaniel Hawthorne was born on July 4, 1804 in Salem Massachusetts and died on May 19, 1964 in Plymouth New Hampshire. Mr. Hawthorne was injured when he was young and during that time he became fascinated with literature and writing, eventually he went to college and made friends many of whom are famous classic writers. After graduation he returned home and wrote many of his famous book, The Hollows of the Three Hills, An Old Woman's Tale, My Kinsman, and many more. During this time Hawthorne worked for the Boston Custom House, where he met his first wife. They eventually got married, moved to Massachusetts, and had three children. Due to financial reasons they moved back to Salem and he got a job at the Salem Custom House, soon he was let go due to the election of a new president named Zachary Taylor. During this time he started writing again, this is when he wrote The Scarlet Letter.
Subclass – Archeorinthes –*Fossil birds (Jurassic birds of Mesozoic Age). *Flight feathers present. *Long tail without a pygostyle. *Carpals and metacarpals free. *Abdominal ribs present. *Hand reduced to three digits.
Parrsboro’s very own, local fossil collector Eldon George discovered the world’s smallest dinosaur footprints. They were made by a creature no bigger than a robin. His discovery proved the theory that birds evolved from dinosaurs.
Sedimentary rocks interpret dinosaur habitats through encased environmental structures of the past. Through sedimentary rocks, paleoecologists’ can examine the arranged formation of sedimentary structures to specify what type of environment the dinosaurs’ lived in. An example of a specific sedimentary rock structure can be seen through formed weathering and ripple marks by how wind and sand formed distinct patterns in the past layered sediment. These arrangements provide interpretations on the structure of the sediment and the habitat of encased fossils, through modern day comparisons
“We often think of the T-Rex as this huge crocodile-like bipedal reptile but in fact, its closest modern relative are birds and the T-Rex was actually the dinosaur equivalent of a chicken” explains Linda Rushmore, head researcher at the North Carolina Museum of Natural Sciences’ Paleontology
How do our relationships with others define who we are? Others affect us greatly. The people who surround us everyday have a great impact on our own life. Friends and family are the people who create you, and are part of the reason of who you are today. For example, when there’s a new trend, or when someone says a mean comment, you might change something about you at one point or another. Who affects your life?
Dinosaurs ruled the earth for over 65 million years and thankfully for the human race, they became extinct. Ultimately, only a major catastrophe could completely wipe out an entire species, let alone an entity of dinosaurs and the debacle on the causes of dinosaur extinction have flooded the minds of paleontologists for centuries. Geologist and zoologist Stephen Jay Gould published “Sex, Drugs, Disasters, and the Extinction of Dinosaurs,” to compare scientific and speculative causes of dinosaur decimation. Personally, I found this passage very informational and enjoyed reading it. Gould provides three theories that capture the reader’s curiosity, allowing room for pondering in one’s mind.
Birds are considered feathered reptiles. They share a common ancestor with the crocodile. Nearly every anatomical feature of a bird can be related to its ability to fly. Birds lay a hard shelled amniotic egg rather than the leathery egg of other reptiles.
There are numerous counts of evidence showing the processes of evolution and how species ultimately evolved over millions of years. One of the most compelling hypotheses behind evolution was presented by Charles Darwin with his study of the Galapagos Islands. His study showing the various different birds and their different evolutions they went through to be able to survive the changes of weather and relocation. The birds he studied had to change in order to survive, or as he simply puts it: “Survival of the Fittest”. Evolution is the changing of past organisms to diversify and have the ability to fit better in their environment and survive. Diving into the dinosaur cladogram, studies have shown that ancient dinosaurs, over hundreds of millions of years ago, evolved into our modern day birds, and not lizards as many suppose. It became apparent that there would not be enough food for a 9 ton dinosaur to consume on a daily basis forever. So evolution occurred and dinosaurs evolved to become more efficient so they could survive more effectively in their
In various stories, the authors often use literary devices to express feeling and thought and to distinguish their stories from others. At times, similar patterns can be found once critically examined instead of simply being read. In two stories, The Devil and Miss Prym by Paulo Coelho and “The Lottery” by Shirley Jackson, the main idea is the sacrifice of one person in a village and how other villagers are affected by it. In The Devil and Miss Prym, barmaid Chantal Prym meets “stranger” Carlos when he visits the village searching for answers. In “The Lottery”, the villagers have an annual drawing to rid of one of their own as tradition. While comparing and contrasting both stories, one can begin to see apparent types of conflict,
Disregarding the feathers of Longisquama, and therefore disregarding its link to Archaeopteryx, these scientists still fully support the dinosaur-bird link. As mentioned before, the extreme majority of paleontologists still subscribe to this idea. A recent discovery in the western region of China seems to clarify the link between dinosaurs and birds. Living at roughly the same time as Archaeopteryx, Sinovenator changii is very closely related to the bird yet is classified as a dinosaur.5
Most American citizens would agree that modern medicine has drastically changed American Society. The progression of medicine has impacted American lives in multiple ways. It has changed how the United States military uses medicine, how American scientists research medicine, and how everyday American citizens use medicine. Just 100 years ago, the people of the time period would not have been able to comprehend the medical advances that today’s society experiences, and what postmodern societies will continue to experience. Over time, the progression of medicine affected American soldiers during times of war, changed how diseases were discovered and treated, and impacted the way 21st century Americans view medicine and medical professionals.
In the myth Arachne as retold by Olivia Coolidge, a young girl challenges a goddess and faces the consequences. In ancient Greece a girl by the name of Arachne is a talented weaver and spinner talent, she was overly proud of her work. Soon after, people started watching Arachne weave and they were beginning to admire her work. Then, Arachne begins to trash talk the gods and goddesses. Athena disguises herself as a old crown and then, starts to talk to Arachne.
Dinosaur extinction: An analysis of events and theories that possibly led to the dinosaurs' demise.