Scratches head

There there, I'm sure you'll figure it out eventually if you just think hard enough pat pat

What is a human, a snake, a bear, a bacteria, or anything else. What defines them?

Do you want to start at the beginning? Do you have one of those baby books on animals with you that make animal sounds? Wanna try and tell me if there are any differences you notice in these categories?

Say a human is defined as an organism with 2 legs, bipedalism is a requirement to be categorized as a human, and you have someone with human dna that has no legs, or amputated a leg. They are no longer bidepal, why would they still be considered human when they don't meet the definition of a human which is a bipedal organism?

Look, you don't have to keep telling me why your own logic fails. I want you to think, using your own head for the first time in your life, and try to understand with this basic human cognition that evolution has provided you with why your own logic fails. You don't have to convince me that humans aren't snakes, I've passed kindergarten, what I want is for you to actually think about the logic you are employing, like actually think about the words you're putting down, until your own arguments fall apart before your eyes, not by someone else saying something, but because you've thought about them critically for the first time in your life. So forget about repeating that your own logic is dumb, I know that, what I want is for you to follow its trail until you understand why it's dumb.