I don't know what it is, but it seems as if some people think that certain living things have less of an importance on this earth. For instance, people go to the pet store to get live crickets for their other animals to eat. Do you think those crickets don't go through horror and pain when they're being eaten? How about the ants we all smoosh on the sidewalk?
I guess the value of each of those LIVING beings is deteriorated because they weren't born human.
Most of my family and friends think I'm rather psychotic about animals (and I AM), however - I could care less if we're talking about a tiny little worm, mice, crickets, WHATEVER - each and every living thing breathes and as it takes its last breath I can't even begin to imagine the horror and pain it feels just before it dies.
Let's relate this to us humans - how much fun do you think it would be to be eaten by a shark?
Point made.