I'll play. Why don't you give me the characteristics of an ape, and how, specifically, humans do not fit them?
Btw what do you mean by "Why aren't mice and pigs equal to humans"? What do you mean by "equal"?
Relatives - cousins, descendents. I am descended from humans. We and they looked like humans, thought like humans, and lived like humans. Apes do not look like us, think like us, or live like us. Apes are apes. Humans are humans.