Resurrecting woolly mammoth cells is hard to do
Biological activity seen in an experiment may be more mouse than mammoth, one cloning expert says

UNFROZEN Scientists in Japan found some mostly intact DNA-containing compartments called nuclei in the cells of this Siberian mammoth that was frozen for 28,000 years.
Cyclonaut/Wikimedia Commons (CC BY-SA 4.0)
This article is only available to Science News subscribers.
Subscribers, enter your e-mail address to access our archives.
