Evidence for this function first came from studies of the organ's anatomy and its nerves as well ... the brain weighs less than a tenth of an ounce. (Adult human brains typically weigh about ...

Just look at a human spine. You can see how the last few bones are partially fused together. That's your tailbone — it's all that's left of our tail. And yes, it's sad and pathetic, and you can ...

Modern human anatomy has built on the strengths and the ... The surfaces of the joints in our legs and between our vertebrae are enlarged, which is an advantage for bearing weight.