Life finds a way.De-extinction, which is sometimes referred to as resurrection biology, is re-creating an extinct organism by means of cloning or selective breeding. Movies such as Jurassic Park raise important ethical questions about bringing extinct animals back to life, even though the science behind how they re-created dinosaurs in that movie was shaky at best. Some species, such as dinosaurs, went extinct due to natural events and changing habitats. Other species went extinct as a direct result of man hunting them or destroying their environment. In those cases, one could argue that we owe the extinct creatures a second chance at life.
Animals that went extinct relatively recently such as the northern white rhinoceros and gastric-brooding frog are excellent candidates for de-extinction because DNA samples are readily available and related species abound that make viable hosts for a cloned embryo. Other animals such as the woolly mammoth and mastodon have been extinct for thousands of years, but well-preserved specimens in permafrost mean that cloning them is within the realm of possibility. Things get trickier when you talk about cloning a T. rex, which went extinct millions of years ago, but soft tissue has miraculously been found in recent fossils. The ultimate moral question would be about whether or not to re-create a Neanderthal and have a human woman carry the fetus to term.
No matter what you may think about if we should try to re-create extinct species or not, here are the best candidates for de-extinction. Get Started