Latest / Spotlight English: Advanced / Hope for the Tasmanian Tiger (Advanced Program)
Transcript
- 0:02Welcome to Spotlight Advanced. I'm Roger Bassi and I'm Megan Nolette. Spotlight uses
- 0:09a special English method of broadcasting. It is easier for people to understand no
- 0:15matter where in the world they live. It is nineteen thirty six. An
- 0:31animal is walking behind bars in a zoo on the island of Tasmania. This
- 0:37animal is a strange one. It looks a little like a dog, but
- 0:42it has dark stripes running down its back like a tiger, and it can
- 0:48open its mouth very wide, almost eighty degrees. Its tail is long and
- 0:54thin, with very little hair. The animal smells the floor behind the bars,
- 1:00then it looks out at the people watching it. It is called a
- 1:04thylosine. It is also known as a Tasmanian tiger. It has been named
- 1:11Benjamin, and it is the last of its kind. In several weeks,
- 1:18Benjamin will die. With his death, the Tasmanian tiger will become extinct.
- 1:23It will no longer exist anywhere on the earth. This would be the end
- 1:30of most animals. Once an animal goes extinct, there's usually no hope of
- 1:36bringing it back. But the Tasmanian tiger may be different, and today scientists
- 1:42are working on a technology that once seemed impossible. They are hoping to bring
- 1:49the Tasmanian tiger back from extinction. Today's Spotlight Advanced is on the de extinction
- 1:56of the Tasmanian tiger. The Tasmanian tiger is very important to the Australian island
- 2:06of Tasmania. It once lived all over the Australian continent, but around three
- 2:12thousand years ago the tigers began to die out there. By the eighteen hundreds,
- 2:17they were gone from most of Australia. Europeans began settling in Tasmania in
- 2:23eighteen twenty five. By that time there were only five thousand Tasmanian tigers left.
- 2:30This animal was also special. It was a marsupial. Marsupials give birth
- 2:37to their young very early in life. Female marsupials have special bags of skin
- 2:43or pouches as part of their bodies. When a tiny marsupial is born,
- 2:49it lives in this pouch. The tiny baby is able to drink milk inside
- 2:53its mother's pouch and continue to grow. The baby can leave and return to
- 2:59its mother's pouch for months. The Tasmanian tiger was the largest meat eating Marsupial.
- 3:07Sadly, Europeans in Australia did not understand how special the Tasmanian tiger was
- 3:14when they arrived in Tasmania. They thought the Tasmanian tiger might be dangerous.
- 3:20They blamed it for killing their farm animals. They thought it might even hurt
- 3:23children, so they began hunting it. The government even paid money for Tasmanian
- 3:30tiger's skins. When people understood that they had made a mistake, it was
- 3:36too late. By nineteen thirty six, there was only one Tasmanian tiger left.
- 3:42Humans had hunted the Tasmanian tiger to extinction, but the Tasmanian tiger's memory
- 3:52is still very strong in Australia. Since its extinction, it has become a
- 3:58symbol of Tasmania. It is the official symbol of the Tasmanian state. It
- 4:03is even the symbol of the island's cricket team. This may be one reason
- 4:08why scientists are trying to bring this tiger back. It is important to Tasmanian
- 4:14identity. Andrew pask Is, a scientist at the University of Melbourne. Is
- 4:19also the head of a laboratory called tiggr It is responsible for one attempt at
- 4:27bringing the Tasmanian tiger back. Pask spoke to Al Jazeera News about his reason
- 4:32for trying. I think there is nothing that nears the amazingness of the Tasmanian
- 4:40tiger. It was an amazing, beautiful marsupial, but humans viciously hunted it
- 4:47to extinction. We owe it to the tigers to spend the time and money
- 4:54to return them to their environment. It is a way to repair some of
- 4:59the wrong we have done in the past. Pask's goals are very challenging.
- 5:08No one has ever brought an animal back from extinction before, though other attempts
- 5:12have been made. Pask's goal is to try a different method. His project
- 5:18will start with DNA taken from the remains of Tasmanian tigers. DNA is a
- 5:25special chemical found in most living things. Each individual animal has its own special
- 5:31DNA, but each kind of animal also has DNA that it shares with other
- 5:38animals that are the same kind. This is called the animal's genome. Using
- 5:44the Tasmanian tiger DNA, Pask hopes to find what its genome looked like.
- 5:51He also hopes to do the same for another animal called the fat tailed Dunnart.
- 5:56The fat tailed Dunnart is a mouse like marsupial that eats meat like the
- 6:00Tasmanian tiger did. The Dunnart has DNA that is a lot like the Tasmanian
- 6:05tigers. By comparing the two, Pask will be able to see where they're
- 6:11different, and he will try to change the DNA in the cell of a
- 6:15Dunnart. If he succeeds, the cell will be the same as a Tasmanian
- 6:20tigers. From there, he will place the cell inside a Dunnert egg and
- 6:27that egg could grow into a baby Tasmanian tiger. For Pask and others like
- 6:32him, there are no negative signs to bringing back the Tasmanian tiger, and
- 6:38his project has gained millions of dollars from investors, but there are still many
- 6:44difficulties in the way. Other scientists have questions. Some argue that it is
- 6:50simply not possible. They argue that the Dunnart's DNA is far too different from
- 6:57a Tasmanian tigers to change. Some say that even if the project worked,
- 7:02it would not create a true Tasmanian tiger. Others believe that the project is
- 7:09troubling. Other kinds of animals in Tasmania are dying every day, but less
- 7:15money is going to help these animals than for an already extinct animal. They
- 7:20argue it makes more sense to help animals that are still alive, such as
- 7:25the Tasmanian devil. Others are not sure if a new Tasmanian tiger would be
- 7:30able to live without human help. Carol Freeman is an animal studies researcher at
- 7:36the University of Tasmania. She points out that the procedure involves animal experimentation,
- 7:45and she is afraid that these experiments will cause animal suffering. She spoke to
- 7:49Scientific American about her own concerns. The whole conversation is about bringing this animal
- 7:58back. What's concern for the individual animals is not really talked about. Their
- 8:05suffering is not right for such an unsure result, it would be many years,
- 8:11if ever, that these Tasmanian tigers could have anything like the life they
- 8:16may have had in the wild. Even with these difficulties, Pask is positive
- 8:28his ideas will win out. He is sure that he can and should bring
- 8:33back the Tasmanian tiger. He even believes it could happen within the next ten
- 8:39years. He spoke to the Cable news network about what he hopes. Our
- 8:45final goal with this technology is to restore this animal to the wild. They
- 8:50had a very important part in nature, so our final hope is that you
- 8:56would be seeing them in Tasmania again one day. What do you think about
- 9:05PASKS project? Do you think it is possible? Do you think it is
- 9:11a good idea to bring an animal back from extinction. We want to hear
- 9:16your thoughts. You can leave a comment on our website or email us at
- 9:20Spotlight English dot com. You can also comment on Facebook at Facebook dot com
- 9:28slash Spotlight Radio. The writer and producer of this program was Dan Chrisman.
- 9:35The voices you heard were from the United States. All quotes were adapted for
- 9:39this program and voiced by Spotlight. You can listen to this program again and
- 9:46read it on the internet at www dot Spotlight English dot com. This program
- 9:54is called Hope for the Tasmanian Tiger. You can also get our programs delivered
- 10:00directly to your Android or Apple device through our free official Spotlight English app.
- 10:07We hope you can join us again for the next Spotlight program. Goodbye