If you’ve ever felt grouchy towards others and uncaring about their feelings, you might just be a narcissistic, selfish person. Or you could be a cat. That’s because scientists have learned that cat genomes and human genomes are nearly identical.

Because cat and human genomes are so similar, scientists believe diseases that afflict cats can be used to study how those same diseases can be treated in humans as well. So the next time you look at your cat, you could be looking at the path towards curing human diseases. Thank you cat for its health benefits, which is probably more than you’re getting from the government.

To learn more about the relation between cat genomes and human genomes, click here.