![We sequenced the cave bear genome using a 360,000-year-old ear bone and had to rewrite their evolutionary history We sequenced the cave bear genome using a 360,000-year-old ear bone and had to rewrite their evolutionary history](https://images.theconversation.com/files/386433/original/file-20210225-23-4pg6wh.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=1200&h=675.0&fit=crop)
We sequenced the cave bear genome using a 360,000-year-old ear bone and had to rewrite their evolutionary history
![A brown bear / grizzly bear licks / sucks the marrow out of a bone while cooling off in a stream near Anchorage, Alaska Stock Photo - Alamy A brown bear / grizzly bear licks / sucks the marrow out of a bone while cooling off in a stream near Anchorage, Alaska Stock Photo - Alamy](https://c8.alamy.com/comp/F0N5YT/a-brown-bear-grizzly-bear-licks-sucks-the-marrow-out-of-a-bone-while-F0N5YT.jpg)
A brown bear / grizzly bear licks / sucks the marrow out of a bone while cooling off in a stream near Anchorage, Alaska Stock Photo - Alamy
![Ron Magill on Twitter: "Hey Bear!!!! Grizzly bear enjoying the leg bone from a cow at the Indianapolis Zoo during my recent workshop there. https://t.co/MN111yTmPT" / Twitter Ron Magill on Twitter: "Hey Bear!!!! Grizzly bear enjoying the leg bone from a cow at the Indianapolis Zoo during my recent workshop there. https://t.co/MN111yTmPT" / Twitter](https://pbs.twimg.com/media/FcjYYe5acAIOCRd.jpg)
Ron Magill on Twitter: "Hey Bear!!!! Grizzly bear enjoying the leg bone from a cow at the Indianapolis Zoo during my recent workshop there. https://t.co/MN111yTmPT" / Twitter
![Alaskan Native Whale Bone Carving of Alaskan Brown Bear / Grizzly Bear, Alaska, Stock Photo, Picture And Rights Managed Image. Pic. AAM-AAES101165 | agefotostock Alaskan Native Whale Bone Carving of Alaskan Brown Bear / Grizzly Bear, Alaska, Stock Photo, Picture And Rights Managed Image. Pic. AAM-AAES101165 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/563079789cfbead7d759510fa22e420a/aam-aaes101165.jpg)