Bringing back the woolly mammoth - maybe
WASHINGTON - Descendants of extinct mammals like the giant woolly mammoth might one day walk the Earth again. It isn't exactly Jurassic Park, but Japanese researchers are looking at the possibility of using sperm from frozen animals to inseminate living relatives.
So far they've succeeded with mice - some frozen as long as 15 years - and lead researcher Dr. Atsuo Ogura says he would like to try experiments in larger animals.
Ok. But the petting zoo is a bad idea.
