Scientists in Japan clone mice that had been frozen for 16 years

http://www.reuters.com/article/newsOne/idUSTRE4A26NV20081103

They suggest this leads to the possibility of cloning extinct species from the cells of frozen animals like mammoths. I've also heard the idea that being able to clone animals could lead to an ethical meat option for vegans and vegetarians (no animal would be harmed as the meat would be grown by itself in a lab).