Pros And Cons Of Cloning

Biotechnology could be the route that would allow scientists to effectively bring back extinct animals, and scientists should attempt to do this. Using biotechnology such as CRISPR Cas9 and cloning, as well as epigenetics, it is possible that scientists could revive ecosystems by de-extincting animals that have been driven to extinction by humans. The technologies are well developed and plausible solutions to the dwindling of the earth’s wildlife. There are numerous animals that could be brought back with these technologies, however some animals cannot or should not be brought back, whereas other animals would be beneficial to be de-extincted. The pros of these processes far outweigh the cons, therefore making de-extinction using biotechnology

As their decline began about a decade after their settlement in late 1700s, this fish’s extinction was mostly due to humans – namely the early European settlers of New Zealand. Their direct contribution to the extinction of the New Zealand Graying was overfishing, which was also added to by the Maori (Source N). The settlers’ indirect causes for the New Zealand Grayling’s extinction were much more numerous. The clearance of forest cover increased light penetration and water temperature, which lead to a deterioration of the fish’s freshwater habitat (Source N). The clearance of bush increased the shifting of the shingle riverbeds in the freshwater areas the New Zealand Grayling inhabited, and also augmented the frequency of droughts and caused more violent floods (Source O), which had adverse effects on the graylings because of subsequently harsh and unfavourable habitats. Aside from the effects that humans had on them, the grayling population was additionally diminished by the invasion of other salmonids (salmon and trout). The New Zealand Grayling was last seen in the1930s (Source N), and has since been classified as

It would be an extremely good food source of a decent size - fully grown, they are from 35 to 40 centimetres in length (Source O). They are needed as a food source because many other fish are becoming extinct as a result of over-fishing, and many other food sources are being depleted due to over farming. As the New Zealand Graying was known to spawn rapidly and in large numbers of about 47 000 eggs per female in the breeding season (Source P), their numbers will surely increase quickly, making both their de-extinction and their status as a food source highly plausible. As the New Zealand Grayling was amphidromous (Source N), meaning it could survive in fresh water and salt water, it can be said that it was a hardy fish able to live in many areas, making its chances of survival after de-extinction quite high. Another pro of bringing back the New Zealand Grayling would be to help revive the numbers of its related subspecies, the Australian Grayling, through interbreeding, which would revive its status as endangered (Source P), and help to keep the Australian aquatic ecosystem thriving. Hence, if possible, the New Zealand Grayling’s de-extinction would be extremely advantageous in a worldwide sense, and if biotechnology is the route to doing this, it should be