If any species are in endanger, they should be protected by the regulation and provision. What makes the massive conflict on Whaling is that although the Whales are endangered animals, however, in contrast, as the regulation labeled, the Whales were treated as the natural resource historically. Whether the Whale as the natural resource or not, it has to be evaluated carefully based on the scientific research and ethic's point of view. Evaluation of cultural importance is also critical. A Certain level of preserving the culture is essential since Whaling was a part of Japan's history, but actual Whaling may not be necessary for future
Synapomorphy is a characteristic in an ancestral species and shared by their evolutionary successor. The principle of parsimony is that it helps explain the relationship between species in the form of a phylogenetic tree. Characters used to understand the transition from tetrapods to fish is the phylogenetic tree because they share multiple similarities between each other. Coelacanths which are fish are the closet living relative to tetrapod’s. Also phylogeny and cladistics play a role in distinguishing between dinosaurs and birds.
Despite common beliefs about the threat to human beings, they do not attack people without a definite or convincing reason; therefore, the commonly held view of the “man-eater” is erroneous. Consequently these marine animals should be protected but the shark hunting should be banned because of their high rate of extinction. In the period of Paleozoic Era, about 300 million years ago, marine life was arranged in a totally different way from now. Enormous creatures dwelled the aquatic depths and no smaller scale fish would approach them. For example, although it was a baleen whale, Archaeomysticetus was not like
There is so much more research to be done on this topic, not only looking into divergence that has occurred or is occurring in whales but even researching into some of the species’ behavior. We need to know more about there patterns to see when there is a change in it and to then look into what has caused the alter in pattern. Obviously the ocean is enormous so siting’s of these mammals is infrequent and would cost an extensive amount to start looking into
Hello, everyone. Today, I’d like to introduce to you the decreasing of blue whales and think together from moral standpoint about some words which are carelessly used now and then. I’m afraid this topic a little deviates from environmental problems, but to prevent us from repeating same mistakes in nature, it is necessary not only survey natural environment but also overturn our thought against nature and all living things in the earth from the root. It has passed long time since the decreasing of the number of blue whale started to become the problem. We can attribute this problem to over whaling for the commercial purpose.
There is also a huge part of literature citing high percentage of miscarriage, stillbirth, early death, genetic abnormalities, and chronic diseases among cloned animals. Cloning also raises ethical problems in a sense that it violates the prohibitions or ideology regarding the law of nature. It may have harmful consequences to animals, human beings or the environment, in the sense of animal cloning can be perfected and the cloning techniques can be applied to human. There is already information that scientists are experimenting with human reproductive cloning and the animal cloning techniques can serve as the guide for perfecting human cloning. In both agricultural cloning and cloning for conservation, cloned animals may have a insistent shock on the environment,
Have you ever thought what would we be like without fish. How important is our marine life? Over fishing is a huge problem that needs to be brought to an end very quickly. Overfishing is an urgent matter that should not be pushed aside as if it was not as important as the rest. As a result of overfishing, we could lose 90% of ocean fish.
This could lead to extinction of that characteristic because it did not get passed on. On the other hand, the ones who survive pass on their characteristic to the next generation leading to change of morphology or behaviour of the species. The Galapagos finch birds is an example of selection in nature, Peter and Rosemary Grant observed the flinches in Galapagos Island and found out that there are 13 finch species with different behaviours and characteristic, after a drought in 1977, the average beak and body size of the bird increase, even in 1978 when the weather went back to normal, the size remains. The drought causes the smaller size birds with
Ellen Frankel & Jeffrey (2001) considered that testings should be using human instead of animals for good scientific reasons. Although some of the animals are similar to human, the DNA are different. As a result, the side effects that made by the medicine on animals and humans may not the same. Moreover, the size of humans are different from the animals, the same dose of drug may harmful some small size animals like rabbits but do not have effects on humans. It is clear that there are both advantages and disadvantages to using live animals for scientific research.
On the other hand, similarity in the argument is that animals should be replaced if there are effective alternatives and it was useful in the past. Because of these differences between opponent’s opinion and proponents about animal experimentation, argument about animal experimentation often leads to vigorous debate. It is likely that the case of animal experimentation may decrease in the future. Therefore, people should discover alternatives, otherwise there will be no test to see side