Our primate progenitors had bodies a lot like those of modern monkeys and spent tens of millions of years living in trees. From them we inherited our versatile hands, amazing vision and capable brains — but also some less beneficial traits, including our bad backs and terrible sense of smell.
"Your Inner Monkey," Pt. 3, on Your Inner Fish airs on Wednesday, April 23rd at 9 pm on channels 3 and 3-1.