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Researchers are looking into genetically reviving extinct animals, but this presents practical, ethical, and environmental issues.

-Scientists are working to restore species such as the bucardo, aurochs, passenger pigeon, and woolly mammoth.
-Cloning, gene editing, and selective breeding are some of the methods.
-Because dinosaur DNA is so deteriorated, Jurassic Park is not a true example of de-extinction.
-Some contend that safeguarding endangered species should take precedence over bringing extinct ones back to life.
-De-extinction may aid conservation if properly managed and privately sponsored.

Rtve. (2024, February 17). Des-Extinción [Video]. RTVE.es. https://www.rtve.es/play/videos/somos-documentales/des-extincion/6230353/

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We Could Resurrect the Woolly Mammoth. Here's How.

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We Could Resurrect the Woolly Mammoth. Here's How.

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Scientists could possibly resurrect the woolly mammoth by altering DNA.

• Aims to resurrect extinct Ice Age herbivores like the woolly mammoth.
• Uses CRISPR to place individual genes for specific characteristics into living creatures' genomes.
• Based in Russia, researchers reintroduce Pleistocene-era animals to Siberian plains.
• Reintroducing animals can help reduce melting of permafrost by lowering the temperature.
• Project involves sequencing a prehistoric mammoth genome, determining mammoth characteristics, and introducing genes into an Asian elephant embryo.
• Goal is to have the first baby in two to three years.
• No oversight body, making success difficult.
• Korean company Sooam Biotech is also attempting to clone a mammoth material.

Worrall, S. (2017, 9 julio). We Could Resurrect the Woolly Mammoth. Here’s How. Science. https://www.nationalgeographic.com/science/article/woolly-mammoths-extinction-cloning-genetics

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'Closer than people think': Woolly mammoth 'de-extinction' is nearing reality — and we have no idea what happens next

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'Closer than people think': Woolly mammoth 'de-extinction' is nearing reality — and we have no idea what happens next

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Colossal Biosciences is close to reviving long-extinct species, with plans to produce mammoth-like calves by 2028, with the possibility of observing another species before then. But the question isn't if we can, it's if we should.

• Texas-based biotechnology company Colossal Biosciences plans to reintroduce three extinct species: dodo, Tasmanian tiger, and woolly mammoth.
• The aim is to enrich biodiversity, replenish ecological roles, and enhance ecosystem resilience.
• Over 60 partial woolly mammoth genomes have been acquired for editing elephant genomes.
• Once a DNA sequence is established, a hybrid elephant-mammoth embryo will be implanted into an Asian or African elephant surrogate.
• The company also plans to resurrect the dodo and thylacine.
• Technological hurdles and potential health risks of de-extinct animals are significant.
• Large-scale mammoth reintroductions could lead to conflicts between humans and wildlife.
• Critics argue that the funds raised by Colossal Biosciences could be better used for conservation and genetic research.

• Potential significant returns on investment.
• De-extinction could harm nature.

Pare, S. (2024, 30 agosto). «Closer than people think»: Woolly mammoth «de-extinction» is nearing reality — and we have no idea what happens next. livescience.com. https://www.livescience.com/animals/extinct-species/closer-than-people-think-woolly-mammoth-de-extinction-is-nearing-reality-and-we-have-no-idea-what-happens-next

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Why resurrecting extinct animals is actually a GREAT idea

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Why resurrecting extinct animals is actually a GREAT idea

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Science and conservation may benefit from de-extinction, but once again, there are moral and practical issues.

-Cloning, genetic editing, and selective breeding are examples of de-extinction techniques.
-Researchers are giving Asian elephants mammoth genes.
-Band-tailed pigeons are being created by editing the DNA of extinct pigeons.
-Breeding contemporary cattle to resemble the extinct wild ox is known as aurochs.
-Preserving endangered animals would be a better use of resources.
-It could be difficult for resurrected animals to adjust to contemporary settings.
-possible disturbances to the environment in the event that these species are brought back.
-Some contend that, with proper management and private funding, de-extinction might be advantageous.

Joe Scott. (2023, December 25). Why resurrecting extinct animals is actually a GREAT idea [Video]. YouTube. https://www.youtube.com/watch?v=WHLCyJKPK_s

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The Mammoth’s Return: Cloning Extinct Animals

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The Mammoth’s Return: Cloning Extinct Animals

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Colossal aims to clone mammoths to combat climate change and restore ecosystems. However this raises ethical questions regarding surrogate mothers and animal welfare.

• Vision: Create mammophants, hybrid animals combining woolly mammoths and Asian elephant DNA.
• Challenges: Technical issues, ethical concerns, and animal welfare.
• Success depends on responsible conservation practices and balance between scientific progress and biodiversity priorities.

Todd, P., & Todd, P. (2025, 21 enero). The Mammoth’s Return: Cloning Extinct animals. Science Digest - KeepExperimenting. https://sciencedigest.org/the-mammoths-return-cloning-extinct-animals/

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The Mammoth's Return: Cloning Extinct Animals

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The Mammoth's Return: Cloning Extinct Animals

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Colossal aims to clone mammoths to combat climate change and restore ecosystems. However this raises ethical questions regarding surrogate mothers and animal welfare.

• Vision: Create mammophants, hybrid animals combining woolly mammoths and Asian elephant DNA.
• Challenges: Technical issues, ethical concerns, and animal welfare.
• Success depends on responsible conservation practices and balance between scientific progress and biodiversity priorities.

Todd, P., & Todd, P. (2025, 21 enero). The Mammoth’s Return: Cloning Extinct animals. Science Digest - KeepExperimenting. https://sciencedigest.org/the-mammoths-return-cloning-extinct-animals/

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 The pros and cons of reviving extinct animal species.

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 The pros and cons of reviving extinct animal species.

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Using genetics, scientists are investigating ways to bring extinct species back, but this calls ethical questions regarding resources and morality.

-Human activity has caused the extinction of many species and is putting others in danger.
-Researchers hope to revive extinct and extant creatures by using their DNA.
-While some see this as a means of aiding conservation, others think it should be for study.
-Resources presently required for endangered species would be needed to care for revived animals.

Bouchard, A. (2017, March 20). The pros and cons of reviving extinct animal species. Labroots. https://www.labroots.com/trending/plants-and-animals/5579/pros-cons-reviving-extinct-animal-species?srsltid=AfmBOoraS8-0iYADmwrcDQ2_JQjsQ1XQXldCSHlSywequGfRTcSN07Qm