[lightbyte]

I asked myself this a while back when I was feeding my tarantulas their weekly crickets and from my brief searches it seems like there isn't a general consensus on if inverts do or do not feel pain, but most people lean towards no. One big indicator for this was the fact that various insects have been observed to not react or notice at all when they are being eaten. I've anecdotal observed this myself sometimes where crickets do not seem to realize they are currently being eaten by a giant tarantula.