Right, we aren't exactly squirrals, but we can climb trees, rocks, mountains, buildings, and any number of tall apparatus. We aren't great at it, and we don't exactly land on our feet and feel fine after falling 10 times our own body size (think cat off a fence, that'd be like 60ft for us), but humans are capable of going upwards as well as forwards.
So where does this all come together?
Can you think of anything that can do those 3 things? How about add the fact we are bipedal but also capable of crawling? We can explore potholes and gaps just small enough to fit our shoulders through. We are capable of fighting, and violence, eventually capable of utilising incredible reactions that do not require a single thought. Understandably, we haven't added flying to our repertoire yet, but evolution takes time.