Scientists are making significant progress towards reviving the woolly mammoth

A company aiming to bring extinct animals back from the dead said it has taken an elephant-sized step toward genetically resurrecting the woolly mammoth, a wild if contentious goal to repopulate the Arctic tundra with a missing titan.

During the last ice age, the woolly mammoth owned the top of the world, plodding across Eurasia and North America and as far south as the modern-day Midwest.

As the creatures died out 4,000 years ago, some carcasses froze over in icy tundra that preserved not only their bones but also their flesh and fur, giving paleontologists the chance to collect DNA fragments. Some mammoth meat was so well kept that at least one adventurous researcher has eaten it.