Scientists say they have revived the extinct wolves known from Game of Thrones – See the video
Is the birth of Romulus, Romulus and Calisi the first case of de-extinction? Read what scientists say about the news that has gone viral
Ancient viral DNA in the human genome linked to major psychiatric disorders
Until recently, it was assumed that the so-called "fossil viruses" were simply junk DNA with no important function in the body
Elephant stem cells created in a lab for the first time could help bring back the mammoth
While it may seem impossible to bring long extinct creatures back to life, scientists are achieving breakthroughs that could enable a comeback, perhaps in the not so distant future