A 14,000-year-old puppy, whose perfectly preserved body was found in Russia, munched on a woolly rhino for its last meal canapina

Russian researchers first excavated the preserved, furry body of the canine -- which could be a dog or a wolf -- from a site in Tumat, Siberia, in 2011.

Inside the 14,000-year-old puppy's stomach was a hairy piece of tissue. At first, scientists assumed the fragment belonged to a cave lion, because of its fine yellow fur. But tests by experts at Stockholm's Natural History Museum told a different story.

'When they got the DNA back, it didn't look like a cave lion,' Love Dalen, a professor of evolutionary genetics at the Centre for Palaeogenetics, a joint venture between Stockholm University and the Swedish Museum of Natural History, told CNN.



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'We have a reference database and mitochondrial DNA from all mammals, so we checked the sequence data against that and the results that came back -- it was an almost perfect match for woolly rhinoceros,' Dalen said.

'It's completely unheard of. I'm not aware of any frozen Ice Age carnivore where they have found pieces of tissue inside,' he said.

After radiocarbon dating the sample, experts determined that the rhino skin was around 14,400 years old.

'This puppy, we know already, has been dated to roughly 14,000 years ago. We also know that the woolly rhinoceros goes extinct 14,000 years ago. So, potentially, this puppy has eaten one of the last remaining woolly rhinos,' he said.

Scientists don't know how the puppy came to have a piece of rhino in its stomach.

Edana Lord, a PhD student at the Centre for Palaeogenetics who co-authored a paper studying the demise of the woolly rhino, told CNN that the creatures would have been roughly the same size as the modern-day white rhino -- making it unlikely that the puppy killed the beast itself.

The researchers also found it curious that the puppy died shortly after eating the rhino.

'This puppy must have died very shortly after eating the rhino, because it's not very digested,' Dalen told CNN.

'We don't know if it was a wolf, but if it was a wolf cub, maybe it came across a baby rhino that was dead, or the (adult) wolf ate the baby rhino,' he speculated. 'Maybe as they were eating it, the mother rhino had her revenge.'

Russian researchers first excavated the preserved, furry body of the canine -- which could be a dog or a wolf -- from a site in Tumat, Siberia, in 2011. After radiocarbon dating the sample, experts determined that the rhino skin was around 14,400 years old. 'This puppy, we know already, has been dated to roughly 14,000 years ago. We also know that the woolly rhinoceros goes extinct 14,000 years ago. So, potentially, this puppy has eaten one of the last remaining woolly rhinos,' he said. 'We have a reference database and mitochondrial DNA from all mammals, so we checked the sequence data against that and the results that came back -- it was an almost perfect match for woolly rhinoceros,' Dalen said. 'We don't know if it was a wolf, but if it was a wolf cub, maybe it came across a baby rhino that was dead, or the (adult) wolf ate the baby rhino,' he speculated. 'Maybe as they were eating it, the mother rhino had her revenge.' 'We have a reference database and mitochondrial DNA from all mammals, so we checked the sequence data against that and the results that came back -- it was an almost perfect match for woolly rhinoceros,' Dalen said. 'We don't know if it was a wolf, but if it was a wolf cub, maybe it came across a baby rhino that was dead, or the (adult) wolf ate the baby rhino,' he speculated. 'Maybe as they were eating it, the mother rhino had her revenge.' 'When they got the DNA back, it didn't look like a cave lion,' Love Dalen, a professor of evolutionary genetics at the Centre for Palaeogenetics, a joint venture between Stockholm University and the Swedish Museum of Natural History, told CNN. Inside the 14,000-year-old puppy's stomach was a hairy piece of tissue. At first, scientists assumed the fragment belonged to a cave lion, because of its fine yellow fur. But tests by experts at Stockholm's Natural History Museum told a different story. Edana Lord, a PhD student at the Centre for Palaeogenetics who co-authored a paper studying the demise of the woolly rhino, told CNN that the creatures would have been roughly the same size as the modern-day white rhino -- making it unlikely that the puppy killed the beast itself. 'We don't know if it was a wolf, but if it was a wolf cub, maybe it came across a baby rhino that was dead, or the (adult) wolf ate the baby rhino,' he speculated. 'Maybe as they were eating it, the mother rhino had her revenge.' The researchers also found it curious that the puppy died shortly after eating the rhino. Inside the 14,000-year-old puppy's stomach was a hairy piece of tissue. At first, scientists assumed the fragment belonged to a cave lion, because of its fine yellow fur. But tests by experts at Stockholm's Natural History Museum told a different story. After radiocarbon dating the sample, experts determined that the rhino skin was around 14,400 years old. Scientists don't know how the puppy came to have a piece of rhino in its stomach.

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