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You Always Knew Your Cat Was Half Wild But Now There’s Genetic Proof

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Paula Daniëlse—Getty Images/Flickr RM

That kitty curled up on your lap is only one genetic step away from jungle killer

A new study on house cats has found that our feline companions are actually only semi-domesticated.

People began domesticating cats around 9,000 years ago but DNA researchers from Washington University in St. Louis found that house cats still have many of the same traits as their wild cousins. The fact that cats have retained the ability to hunt and survive effortlessly in the wild just underscores how little impact we humans have had on them.

Wes Warren, an associate professor of genomics at the university, told the Los Angeles Times, “We believe we have created the first preliminary evidence that depicts domestic cats as not that far removed from wildcat populations.”

That’s not to say humans haven’t had any influence on cats. We originally took them into our homes to hunt rodents and rewarded that behavior with food. According to researchers, this lead to eventual changes in a group of stem cells that resulted in more docile (but not fully domesticated) felines and produced colors and fur patterns that humans liked.

“Our results suggest that selection for docility, as a result of becoming accustomed to humans for food rewards, was most likely the major force that altered the first domesticated cat genomes,” researchers wrote.

Read more at the Los Angeles Times.

Read next: Celebrate National Cat Day With the Most Ridiculous Cover in TIME History

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