In the late 1990s, geneticists began studying extinct species’ DNA, analyzing hair and bone preserved in frozen tundra. At that time, most computers stored data on floppy disks that held just 1.44 megabytes of memory — smaller than the average selfie. Today, those disks might as well be Ice Age artifacts, too. Not only is their storage capacity miniscule by today’s standards, but recovering their data is practically impossible, due to the degradation of their materials and the special equipment required to read them.