|Brown bear and polar bear originate from the same species|
This includes humans too; our closest relative is the chimpanzee! We share 99% of our DNA with chimps, and it is estimated our species diverged approximately 5-8 million years ago. That 1% makes a big difference though, and one of the greatest differences has been the rapid development of our brains. Not only are our brains larger, but we have developed particular regions of the brain and processes that greatly improve our cognitive function, fine control of our hands, memory, and ability to socialise and communicate.