Baby steps - before you can have Woolly Mammoths, you need Woolly Mice apparently. Colossal Biosciences, the bioengineering firm behind the resurrection of the Woolly Mammoth, has announced a huge step forward in their work. They have been able to bioengineer Woolly Mice using ancient Woolly Mammoth DNA. Not only do these little guys represent an notable scientific achievement in dextentiction but they are also adorable. This means that we could have a Woolly Mammoth calf by 2028.