The only reason you are severely underestimating the grasshopper is because you anthropomorphize the cows. All living things desire to remain alive, all organisms* feel pain. Killing and causing suffering is part of life. You have to do it in order to live.. or pay someone to do it for you, in which case you are an hypocrite not someone of higher moral**.
* That include plants, which is now know for facts that they communicate, are self aware and feel pain. Nature has many way, the central nervous system is only the way used my animals to achieve the goal of all living organism.
** Strict vegetarian diet also involve the killing of animals. Mechanized agriculture kill wildlife the field and in processing facility. Unless the animal-right vegan carefully hand pick ALL his food, he is a hypocrite.