Most mammoth populations had died out by around 10,000 years ago although a small population of 500-1000 woolly mammoths lived on Wrangel Island in the Arctic until as recently as 1650 BC.

Around 4,000 years ago, the woolly mammoth ceased to exist and scientists have blamed generations of inbreeding for their demise. However, we now know that it wasn’t incest that killed them.

(Bloomberg) -- A biotechnology startup working to bring back animals from extinction has raised $200 million at a valuation of $10.2 billion, more than six times its valuation just two years ago.