American Company Aims to Bring Back the Dodo Bird
2023-02-06
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1More investors are supporting a biotechnology company working on ways to bring back animals that have died off.
2Some scientists, however, are doubtful such research efforts are possible - or even a good idea.
3Colossal Biosciences first announced its plan to bring back a hairy ancestor of today's elephants, known as the woolly mammoth, two years ago.
4Recently, the company said it wanted to bring back the dodo bird: a large, flightless bird.
5"The dodo is a symbol of man-made extinction," said Ben Lamm of Colossal Biosciences.
6The company has formed a special group that works on bird-related genetic technologies.
7The last dodo was killed in 1681 on the Indian Ocean island of Mauritius.
8Colossal Biosciences is based in the city of Dallas, Texas.
9It started operations in 2021.
10Recently, the company announced it had raised an additional $150 million in financing.
11To date, it has raised $225 million from many investors that include United States Innovative Technology Fund, Breyer Capital and In-Q-Tel, an organization supporting national security agencies.
12The possibility of bringing the dodo back is not expected to directly make money, said Lamm.
13But the genetic tools and equipment that the company develops to try to do it may have other uses, including for human health care, he said.
14For example, Colossal Biosciences is now testing tools to change several parts of the genome at the same time.
15It is also working on technologies for what is sometimes called an "artificial womb," he said.
16The dodo's closest living relative is the Nicobar pigeon, said Beth Shapiro, a scientific advisor with the bioscience company.
17She has been studying the dodo for 20 years.
18She is a professor at the University of California, Santa Cruz and receives financial support from the Howard Hughes Medical Institute (HHMI).
19The organization also supports The Associated Press' Health and Science Department.
20Shapiro's team plans to study DNA differences between the Nicobar pigeon and the dodo to understand "what are the genes that really make a dodo a dodo," she said.
21The team may then attempt to change Nicobar pigeon cells to make them seem like dodo cells.
22It may be possible to put the changed cells into developing eggs of other birds, such as pigeons or chickens.
23Then the birds might create young that could naturally produce dodo eggs, said Shapiro. The idea is not yet fully developed.
24Shapiro said animals are a product of both their genetics and their environment - which has changed a lot since the 1600s.
25She added, "it's not possible to recreate a 100% identical copy of something that's gone."
26Other scientists wonder if it is even a good idea to attempt to recreate species that have died off.
27They question whether such efforts take attention and money away from attempts to save living species.
28There is a real risk "in saying that if we destroy nature, we can just put it back together again - because we can't," said Duke University's Stuart Pimm, who has no connection with the company.
29"And where on Earth would you put a woolly mammoth, other than in a cage?" Pimm said.
30He also said that the environment where mammoths lived disappeared long ago.
31Biologists who know about captive breeding programs say that it can be difficult for zoo-bred animals to live in the wild.
32Boris Worm is a biologist with the University of Dalhousie in Halifax, Nova Scotia.
33He is also not linked to Colossal Biosciences.
34He said animals need to learn from other wild animals of their kind - something that dodos and mammoths would not be able to do.
35"Preventing species from going extinct in the first place should be our priority, and in most cases, it's a lot cheaper," he said.
36I'm John Russell.
1More investors are supporting a biotechnology company working on ways to bring back animals that have died off. 2Some scientists, however, are doubtful such research efforts are possible - or even a good idea. 3Colossal Biosciences first announced its plan to bring back a hairy ancestor of today's elephants, known as the woolly mammoth, two years ago. Recently, the company said it wanted to bring back the dodo bird: a large, flightless bird. 4"The dodo is a symbol of man-made extinction," said Ben Lamm of Colossal Biosciences. The company has formed a special group that works on bird-related genetic technologies. 5The last dodo was killed in 1681 on the Indian Ocean island of Mauritius. 6Colossal Biosciences is based in the city of Dallas, Texas. It started operations in 2021. Recently, the company announced it had raised an additional $150 million in financing. To date, it has raised $225 million from many investors that include United States Innovative Technology Fund, Breyer Capital and In-Q-Tel, an organization supporting national security agencies. 7The possibility of bringing the dodo back is not expected to directly make money, said Lamm. But the genetic tools and equipment that the company develops to try to do it may have other uses, including for human health care, he said. 8For example, Colossal Biosciences is now testing tools to change several parts of the genome at the same time. It is also working on technologies for what is sometimes called an "artificial womb," he said. 9The dodo's closest living relative is the Nicobar pigeon, said Beth Shapiro, a scientific advisor with the bioscience company. 10She has been studying the dodo for 20 years. She is a professor at the University of California, Santa Cruz and receives financial support from the Howard Hughes Medical Institute (HHMI). The organization also supports The Associated Press' Health and Science Department. 11Shapiro's team plans to study DNA differences between the Nicobar pigeon and the dodo to understand "what are the genes that really make a dodo a dodo," she said. 12The team may then attempt to change Nicobar pigeon cells to make them seem like dodo cells. It may be possible to put the changed cells into developing eggs of other birds, such as pigeons or chickens. Then the birds might create young that could naturally produce dodo eggs, said Shapiro. The idea is not yet fully developed. 13Shapiro said animals are a product of both their genetics and their environment - which has changed a lot since the 1600s. She added, "it's not possible to recreate a 100% identical copy of something that's gone." 14Other scientists wonder if it is even a good idea to attempt to recreate species that have died off. They question whether such efforts take attention and money away from attempts to save living species. 15There is a real risk "in saying that if we destroy nature, we can just put it back together again - because we can't," said Duke University's Stuart Pimm, who has no connection with the company. 16"And where on Earth would you put a woolly mammoth, other than in a cage?" Pimm said. He also said that the environment where mammoths lived disappeared long ago. 17Biologists who know about captive breeding programs say that it can be difficult for zoo-bred animals to live in the wild. 18Boris Worm is a biologist with the University of Dalhousie in Halifax, Nova Scotia. He is also not linked to Colossal Biosciences. 19He said animals need to learn from other wild animals of their kind - something that dodos and mammoths would not be able to do. 20"Preventing species from going extinct in the first place should be our priority, and in most cases, it's a lot cheaper," he said. 21I'm John Russell. 22Christina Larson reported on this story for the Associated Press. John Russell adapted it for VOA Learning English. 23_______________________________________________________________ 24Words in This Story 25dodo bird - n. a kind of bird that lived in the past and that was large, heavy, and unable to fly 26symbol -n. an object or sign that represents an idea or that stands for something else 27extinction - n. the state or situation that results when something (such as a plant or animal species) has died out completely 28genome - n. the complete set of genes and genetic material in an organism 29womb - n. the organ in women and some female animals in which babies develop before birth 30species -n. (also pl.) a group of animals or plants that are similar and can produce offspring of the same kind 31captive breeding -n. the activity of keeping animals so they produce more young in a zoo or a place where they are not in natural conditions but in controlled ones 32cheaper -comparative adj. less costly than something else