Scientists from Japan claimed they have managed to successfully clone a mouse that was dead for 16 years.

The mouse was kept in a special environment, at low temperatures and after 16 years the mouse was cloned by using samples from its dead tissue. Though this might seem as a scenario for a cheap horror movie about evil clones or the undead attacking the planet, the scientific implications that follow this new accomplishment are huge.
Most people thought of reviving extinct animals, such as the wooly mammoth as there is estimated that approximately 10, 000 frozen specimens are hidden under the icy lands of Siberia.

In order to achieve this, scientists have used the newest technologies available in fertilization techniques, using damaged sperm and dead tissue. Until now, it was thought that cloning can be performed only by using healthy, living cells but as it turns out, dead tissue can also be used in cloning techniques.

Some say that it is no surprise that the experiment worked, as sperm cell are very resilient and even after they dry out, if rehydrated the cells can still produce a healthy embryo. The successful experiment opened up dreams that many have thought for years, like reviving certain extinct species.

Though it might seem nice to have wooly mammoths walking the Earth again there is a question of bioethics and how would these animals adapt to the new conditions. Reviving an extinct species of animals might seem like a nice dream, but such an action can lead to unbalanced habitats and further extinction of other animals.