[diminoten]

Yes, animal brains are fundamentally different from human brains, and pain as we perceive it is hugely wrapped up in our understanding of time and our own mortality in ways that other animals can't even begin to comprehend.

If you don't know you're alive, how is dying the same?

[Vinnl]

Well, how are they "fundamentally" different from human brains? Can they not understand time, can they not feel pain, and why? Do their nerves not work? Do their brains work differently, and if so, in what way? And what about people with Down's syndrome?

[diminoten]

No, animals literally don't understand time like we do, or experience pain like we do, mostly because they're not as complex. This stuff is all online and you really shouldn't be prodding some random Internet commenter for this information.

All human brains are vastly more complex than the next most complex animal brains. We truly are worlds beyond any other species when it comes to intellect.