Saturday, October 1, 2022

De-extinction: what if dinosaurs came back to life? – code list

In the 90’s great Steven Spielberg film Jurassic Park, a tycoon decided to build a dinosaur theme park. To achieve this, he invests a lot of money so that scientists can develop a method for recovering dinosaur blood stored in the stomachs of mosquitoes trapped in resin. DNA is isolated from this blood and over time the spoilage information is filled with amphibian DNA. Once the DNA is complete, all that remains is to clone the organism and give birth to females unable to breed with each other. How much of what happens in a famous movie can be replicated by non-fiction science?

Danielle Salmon, veterinarian and researcher at Conisette, expert in cloning and assisted reproductive technologiesUNQ talks to the Science News Agency, and is clear in their response: “I don’t know if we can go on to build a real Jurassic Park, but today we have the ability to sequence part of the DNA of these animals” .

Cloning as a method of resurrection

Cloning technology opens up new possibilities. Salamon explains that it is a process that uses the genetic material of a living being to make an identical copy. In short, it seeks to imitate something that nature had already created. “Animal cloning is the creation of a twin animal to an already existing one, i.e. a twin postponed in time. It is the making of an identical copy of a twin with the same characteristics, but many years later”. Unlike genetic modification, cloning does not produce changes to the DNA sequence, but genetic modifications can be used so that some extant animals have characteristics of already extinct animals.

The Argentine specialist assures that there are concrete projects with funding for the cloning of a mammoth: “Part of the genetic information of this animal is available, so its characteristics can be introduced into existing animals such as elephants.” And he gives examples: “We know that mammoths have a protein in their blood that transports oxygen and allows it to live in very cold places, unlike elephants. in that sense, If we introduce this genetic modification to an elephant, we will be one step away from being an animal resembling a giant”.


Those objecting to being able to bring back extinct animals say specimens created in the process of extinction They can suffer either as a result of the procedures used or because of their particular genomic variations. The Animal Welfare Act properly limits such suffering. Beyond physical suffering, some advocates may oppose the abolition of extinction as they oppose zoos, arguing that they exploit animals for unimportant human purposes such as entertainment.

other thing, Newly extinct organisms may be pathogen carriers and harbor harmful unrecognized endogenous retroviruses. Meanwhile, if the species is released or flees into the general environment, it can cause significant damage. Even extinct species that were not pests in their previous environment may still exist today.


They are very similar to the arguments currently put forward for the protection of threatened or endangered species. Towards that end, extinction may offer scientists the unique opportunity to study living members of previously extinct species (or, at least, closer estimates of those species) by providing them with insight into their functioning and evolution. Some regenerated species can be translated into useful products.

Also de-extinction could improve genetic engineering. In addition, some researchers argue that “redevelopment” with existing, locally extinct species in particular habitats Can help restore extinct or endangered ecosystems. The reincarnation of the woolly mammoth as one of the main grazing animals in the Arctic, for example, could provide substantial benefits by helping to restore an arctic steppe instead of a less ecologically rich tundra.

For salmon, the big question is this: “If we don’t have the ability to preserve the animals that exist today, why would we want animals that went extinct millions of years ago? First we have to pay a huge debt, much less than what exists today.” The species has to be protected,” he concluded.

Therefore, it is important that humans reduce the causes of extinction, which include habitat destruction, pollution and climate change.

By: Maria Ximena Perez

science news agency with information

Nation World News Desk
Nation World News Desk
Nation World News is the fastest emerging news website covering all the latest news, world’s top stories, science news entertainment sports cricket’s latest discoveries, new technology gadgets, politics news, and more.
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