Excellent write up. I would like to expand on this point:

"What I realized was that the rabbit didn’t even feel cold."

Unlike all animals, which are adapted to their environment and climate, humans can't survive amid the elements without protection, which seems to suggest that we're essentially out of place with nature.

It's almost as if we don't fit within nature's ecosystem, which seems to be why we've been destroying the planet since the birth of the industrial revolution. We are essentially fighting against nature's principles, no?