7. Dogs: Man’s Best Friend—And Genetic Companion
Dogs aren’t just close companions—they’re genetically similar, too. Humans and dogs share approximately 84% of their DNA, reflecting a deep evolutionary connection. (onetopdog.com) This overlap influences shared diseases like epilepsy and cancer. The parallel evolution of genes behind social bonding may help explain our unique bond with dogs. (en.wikipedia.org) For more information, see the Nature article: