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and making this the oldest RNA sequence. And one fascinating thing about this find is that the RNA allowed scientists to identify metabolic symptoms in Yuka's muscle. And they saw many claw marks were found on the other body, but it's not known whether Yuka had been crunched or was scavenged, and self-stress was found in the RNA. This RNA recovery from an ancient source is opening a whole new door into the biology of extinct species.