Why are humans able to survive in a wider range of habitats than most other species?

My response is exactly the opposite of the other guy.
Humans are by far the (physically) fragile animals on Earth.
We can only survive at temperatures near room temperature, how lame is that?
The only reason we can survive and adapt to all those different habitats is because of what make us special.
Our brain.
Our brain lets use create devices such as air conditioners and clothing.
If we go to Antarctica without the clothing we would die.
Desert without air conditioning we would die.