Decoded genome of meat in pup’s stomach helps scientists build picture of what caused extinction of species Decoded genome of meat in pup’s stomach helps scientists build picture of what caused extinction of species Researchers have shed light on the final centuries of the woolly rhinoceros after studying a hairy lump of meat from the stomach of an ancient wolf cub that became mummified in the Siberian permafrost. The beautifully preserved remains of a two-month-old female wolf cub were