Let's Bark About Brains: What Makes Humans Complicated?

Our brain is a squishy gray thing (kind of like a big meatball) that sits between our ears and tells our bodies what to do. When we see a squirrel, it's the brain that makes us bark and chase. When we hear our humans come home, it's the brain that makes our tails wag so hard we could probably take flight. Humans have brains, too. But whilst similar in structure, there are some differences that impact what they do and how.