Assuming this even works... it won't be a true mammoth, it'll be half African elephant, half mammoth as they are using an African elephant's egg, and the elephant to carry it the 600ish days to term.
"Scientists to Clone Wooly Mammoth. Hey, just in time for scary worldwide climate change, comes the wooly mammoth. Sounds familiar, right? A team of Japanese, Russian, and American scientists based out of Japan's Kyoto University is working to clone a big hairy beast from the Earth's last ice age. "
See the rest HERE