Relationships. The. Evidence. The. Behavior. The. In the text, "Shedding Light on the Dinosaur-Bird Connection" the author demonstrates these three assertions. These explain the similarities and the way dinosaurs and birds are affiliated. The relationship between dinosaurs and birds is very analogous. Dinosaurs have gone extinct, but birds have descended from them. For instance, "Birds are living dinosaurs, and they are remarkably similar to their closest extinct relatives, the non-bird theropod dinosaurs." Birds are now the new dinosaurs, but they are smaller. Stating that, "The group called dinosaurs includes the extinct dinosaurs and all their living descendants. All its members, including living birds, descended from the very first dinosaur—their …show more content…
While discussing relationships, the authors also include evidence. In order to make a claim, evidence is needed for the reckoning. Indicating that, "When scientists study living animals, they can look at behavior, morphology, embryology, and DNA." It's hard finding evidence on a long extinct animal, which causes paleontologists to work harder. For example, "So understanding extinct animals and how they are related to living ones takes a special kind of detective work." Paleontologists use the clues found in ancient rocks: fossilized bones, teeth, eggs, footprints, teeth marks, and even dung." ("Shedding Light on the Dinosaur-Bird Connection"). These citations show how much work it takes to find evidence of the dinosaur and bird relationship. While not remaining on topic, the author also gives us insufficient evidence because it does not give us enough evidence to go by. The authors use personal, expert, and example as the classification triangle. There were many gaps and fallacious reasoning in the text including, how long it took to find out the truth, what steps they took, and also timelines. In order to make this text more accurate, we need graphs, pictures, and …show more content…
It shows that the behavior of brooding the nests that we see all around us today in living birds was already present in the non-bird ancestors of birds." Humans sometimes gather their behavior genes from their family, dinosaurs and birds can as well. Consequently, "The discovery of more and more non-flying dinosaurs with feathers dis- proved that explanation. For these dinosaurs, feathers may have served other functions, including gliding, insulation, protection, and display. Feathers play that same role in many bird species today." ("Shedding Light on the Dinosaur-Bird Connection"). These quotations demonstrate how behavior can show the different similarity traits. While remaining on topic, the authors implement examples, expertise, and detail to show the variety of evidence. The evidence given is sufficient, but there were many gaps made. The gaps and flaws listed point out their similarities on a graph. The authors should have provided the source of their information. What do birds really originate from? Dinosaurs and birds have relationships, they have evidence to prove it, and they have behavioral
Sex, drugs, and disasters are both popular topics that grab public attention and scientific theories of the extinction of dinosaurs. While sex and drug hypotheses represent silly speculations, the disaster claim is good science: it provides testable evidence, has an impact on other scientific fields, and generates continuous research.
Paul, Gregory S. (2002). "Looking for the True Bird Ancestor". Dinosaurs of the Air: The Evolution and Loss of Flight in Dinosaurs and Birds. Baltimore: Johns Hopkins University Press. pp. 171–224. ISBN 0-8018-6763-0.
The reading states that critics have opposes the idea that Sinosauropteryx was a feathered dinosaur and the author provides three reasons of support. However, the professor explains that critics are unconvincing and refutes each of the authors' reasons.
5 The Field Museum. (2002). New Species Clarifies Bird-Dinosaur Link. Science Daily [online], 14 Feb 2002. Available at http://www.sciencedaily.com/releases/2002/02/020214080242.htm
We use dinosaurs to represent the changes in nature that have occurred throughout time. Studies found that although the “oldest rock did not show evidence of life, the progression of plant and animal life that changed in recognizable intervals, from ancient life, age of reptiles to the age of mammals” (Dino Nature Metaphor, slide 6), measured the age of the earth. When we think of dinosaurs in relation to nature, we think of that very powerful force that controls the cycle of life. Nature was able to yield such magnificent ferocious creatures that walked the earth and then take them back when they served nature’s purpose. Dinosaurs fit perfectly in nature’s constant
One question that has stumped many paleontologists for centuries is, “Are birds dinosaurs?” Paleontologists have argued back and forth trying to prove or disprove each side of the theory. So far, advocates have supported their side through the facts of similar bone structures, bone organization, and the idea that dinosaurs had feathers. A common reaction that some people might have about the question is that there is no connection between the two species. Their main reasoning for this conclusion is based on the belief that the two do not have any similar characteristics. I too believed that there was no correlation between the two animals. However, after extensive research, I have completely changed my mind. I believe that birds are dinosaurs because they have similar bone structures, and they both possess feathers.
In today's day people see birds as house pets like budgies and such, but did we ever stop to consider what we adore and coo at could be considered a dinosaur by the author? Text "Shedding Light on the Dinosaur-Bird Connection," ("Shedding Light on the Dinosaur-Bird Connection,"). The author claims that the skeletal figure of birds is closely related to that of a dinosaur, the way a bird acts, and finally, the text looks at the way the brain works in comparison to each other. The author has claimed that a bird and a dinosaur have similarity in the way that they are both built. The writer likes to say that they both have the same such and such features like for example, holes in their hipbones, a fused clavicle bone and other parts of their anatomy.
The debate of whether dinosaurs were cold blooded or warm blooded has been ongoing since the beginning of the century. At the turn of the century scientists believed that dinosaurs had long limbs and were fairly slim, supporting the idea of a cold blooded reptile. Recently, however, the bone structure, number or predators to prey, and limb position have suggested a warm blooded species. In addition, the recent discovery of a fossilized dinosaur heart has supported the idea that dinosaurs were a warm blooded species. In this essay, I am going to give supporting evidence of dinosaurs being both warm and cold blooded. I will provide background information on the dinosaur that was discovered and what information it provides scientists.
...pdated 1995, accessed 3 Sept. 2000), Dino Buzz – What killed The Dinosaurs ? – Current Arguments,
Well now that we are more into context with the dinosaurs let’s talk about the theories as to how they are thought to might have become extinct. The first one is the meteor theory. It is speculated that a meteor/asteroid was the one responsible for annihilating the dinosaurs, in fact it is the most known and credible theory up to this date. This theory consists of a meteor impacting the earth, and according to many researchers it “struck the earth at 40,000 miles per hour and released 2 million times more energy than the most powerful nuclear bomb ever detonated” (Why did the dinosaurs die out? 6).
But birds DID evolve from dinosaurs. In fact, a group of dinosaurs called maniraptoran theropods.… But
Reptiles are vertebrate, or backboned animals constituting the class Reptilia and are characterized by a combination of features, none of which alone could separate all reptiles from all other animals.The characteristics of reptiles are numerous, therefore can not be explained in great detail in this report. In no special order, the characteristics of reptiles are: cold-bloodedness; the presence of lungs; direct development, without larval forms as in amphibians; a dry skin with scales but not feathers or hair; an amniote egg; internal fertilization; a three or four-chambered heart; two aortic arches (blood vessels) carrying blood from the heart to the body, unlike mammals and birds that only have one; a metanephric kidney; twelve pairs of cranial nerves; and skeletal features such as limbs with usually five clawed fingers or toes, at least two spinal bones associated with the pelvis, a single ball-and-socket connection at the head-neck joint instead of two, as in advanced amphibians and mammals, and an incomplete or complete partition along the roof of the mouth, separating the food and air passageways so that breathing can continue while food is being chewed. These and other traditional defining characteristics of reptiles have been subjected to considerable modification in recent times. The extinct flying reptiles, called pterosaurs or pterodactyls, are now thought to have been warm-blooded and covered with hair. Also, the dinosaurs are also now considered by many authorities to have been warm-blooded. The earliest known bird, archaeopteryx, is now regarded by many to have been a small dinosaur, despite its covering of feathers The extinct ancestors of the mammals, the therapsids, or mammallike reptiles, are also believed to have been warm-blooded and haired.
It does so by identifying congruent hierarchical patterns of variation in the morphological and molecular characters of species. Inclusion of fossils in any large-scale phylogenetic analysis of morphological data resulted to increased congruence with molecular results in the full data set analysis when compared with the extant-only analysis. It provides clear evidence that the addition of fossils improves the results of morphological parsimony analysis in Legg (2013). However, lacking sufficient level of phylogenetic literacy to correctly interpret evolutionary trees is prevalent, and O’ Hara (1997) suggested that importance for biology students of learning how to interpret evolutionary trees is on par with that of geography students being taught how to read maps. Phylogenetic illiteracy have resulted to a few common misconceptions like thinking that other organisms are less evolved and are lower on the evolutionary scale, and that humans represent the end line of evolution.
The paleontological; this evidence comprises in the geographical distribution of remnant changes. Again, it is difficult to interpret since it requires a series of sediments that covers a very long period, the range of latitudes, ancient organisms which without change, survive for some million years and whose temperatures can be diagnosed quickly and the pertinent fossils findings.
The fossil record indicates that birds evolved from theropod dinosaurs during the Jurassic Period. Birds are considered as a subgroup of dinosaurs by many palaeontologists. Some birds survived the extinction event that occurred years ago and their lineage continued the dinosaur lineage to the present day.