…that if they ever use in even a slightly wrong way can end up leaving them with debilitating pain for the rest of their lives.
Really bad design flaw, wtf NATURE!
…that if they ever use in even a slightly wrong way can end up leaving them with debilitating pain for the rest of their lives.
Really bad design flaw, wtf NATURE!
Evolution: I made that spine for quadrupeds, you lunatic. What was I supposed to do, throw everything out and start from scratch the minute a protohomonid freak decided it would be funny to start going around on two legs?
ahem, it made that spine for bony fish. land animals was already stretching the design beyond anything reasonable