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.
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. These two species are one in the same they share many characteristics such their skull structure and they are both considered reptiles and scientist still say that birds are living dinosaurs.
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.
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.
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
This graph shows a more stable recording in the movement of this type of orca; the furthest that the whale in graph B dives is about 75 meters. Resident killer whales are also known to only prefer fish, opposed to the transient killer whale, which targets marine mammals. The graph also supports the fact that resident killer whales are exactly what their name says, they are familiar with the territory they inhabit, which allows them to frequent and move about more, where as with the transient orca, they could only go so far because they navigate and dive according to where their food is. Both graphs are very distinct in terms of figuring out which type of killer whale it depicts; the resident killer whale has a very consistent dive and depth pattern, and is very easy to detect because of the obvious background of its kind—what it preys on as well as where it usually migrates to, where as the transient killer whale has a more spaced out graph, due to the fact that unlike the resident killer whale, it stays more to the coastal areas and would only dive deep to seek out other marine mammals to prey
This film about these extremely diverse mammals shows true footage of the whales and what they are capable of in captivity. It also talks about a lot of wrongs that are done to the whales in captivity by people who were there and done it or witnessed it themselves. The film gives out a lot of good information and statistics that have been proven by others as well. Because this source focuses on captivity and the poor treatment of whales, as will my paper, It will come to great use when the time comes to use
The overpopulation of Pollock is creating an environment with no sustainable food source for the sea lions. Commercial fishing would also provide an opportunity to fish in a way that is co-beneficial to the environment, rather than carelessly overfishing. In order for this plan to be successful, close numbers of Pollock, herring, and Western stock sea lions will have to be observed and recorded. If immediate action is taken, the sea lion population could rebound within a few generations.
Loggerhead turtles are species generalists. Loggerheads compete with other carnivorous predators whose diets overlaps with theirs. For example, juvenile loggerheads and Kemp’s ridleys in waters around Long Island have substantial diet overlap. Interspecific competition also occurs for nest sites for beaches shared with other sea turtles species; however, this problem was likely greater in the past before modern turtle population declines. The diet of loggerheads includes many species that are harvested by humans and consequently decreases in food resources can result in sublethal effects in the form of decreased growth rates and reproductive output (Bjorndal 2003).
In Moreton Bay, southern right whale habitat is receiving pressure from human population growth, which resulted in habitat degradation. Human activities near and inside marine park produce sewage, chemical,and noise pollution, also from other recreational activities such as fishing and boat strike that largerly contribute to conservation concern. As sightings growing, a continuous studies such as measurement of ecological factors, along with protection and ecological restoration that supports southern right whale habitat is highly recommended since this species shows an unexpected migration pattern and trend of recovering. Moreton Bay Marine Park already provides some management for ecological protection, while still considering some political, social, and economic factors, for example, the spiritual relation between marine mammals and indigenous people. This issue should be upgraded to a specific framework for marine mammals and the main needs for conserving large diversity of the ecosystem must be taken