These are the 25 animals that scientists want to bring back from extinction

Over the millennia, animals have gone extinct on Earth for many different reasons. Sometimes it's because of a dramatic shift in the climate. Other times it was because of human intervention.Advances in science, specifically biotechnology, could enable scientists to bring some of these animals "back" from extinction, and there are a few already on the list.Generally, it helps if there is a species still alive today that is genetically similar to the extinct animal, like elephants for woolly mammothsor cows for aurochs.There are also certain criteria to consider, as bringing an animal back from the grave has a lot of biological and ecological implications.Scientists must be able to show that thespecies is desirable, such as having an important ecological function or being beloved by humans. And theyalso must considerpractical matters, such as whether we have access to tissue that could give us good quality DNA samples. Most importantly, though, the animals mustalso be able to be reintroduced into the wild in the first place, so sufficient habitats, food, and limited contact with humans are pretty important.Unfortunately, dinosaurs score badly on all of these points, so there probably isn't ever going to be a real Jurassic Park. However, plenty of animals are still on the table.Here are some of them from the list of candidate species for de-extinction from The Long Now Foundation, which was founded by biologist and writer Stewart Brand, plus some others addedfrom our own research.Jennifer Welsh contributed reporting on a previous version of this article.SEE ALSO:Incredible technology could bring animals back from extinctionDON'T MISS:Researchers found something amazing when they autopsied a 40,000-year-old woolly mammothDuring their prime, Caspian tigers could be found in Turkey and through much of Central Asia, including Iran and Iraq, and in Northwestern China as well, but they went extinct in the 1960s. Some scientists want to bring them back by reintroducing the nearly-identical Siberian tiger to its old habitats, where they expect it to adapt.Source: Business Insider The aurochs is an ancestor of domestic cattle that lived throughout Europe, Asia, and North Africa. Scientists want to bring them back through selective breeding of cattle species that carry some aurochs DNA. To this end, European science teams have been selectively breeding cattle since 2009.The Carolina Parakeet was a small, green parrot with a bright yellow head and orange face that was native to the eastern United States. The last wild one died in 1904 in Florida, but the genes that made them still linger in close relatives in Mexico and the Caribbean.See the rest of the story at Business Insider
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