Another point that might be made is that many non-human animals are obligate carnivores, or at least obligate omnivores, and are therefore left with no choice but to do harm. A counter-response often heard in relation to this is that certain animals, such as cats, often engage in behaviours, including play behaviours, that involve deliberately maiming, tormenting, or otherwise harming other animals where it is not necessary for survival and where they seem to show no intent to eat their quarry. This is all well and good, but such a response ignores the fact that such animals, when engaging in social behaviours such as play, are in fact exercising instincts that exist within their psyche due to the very fact that they are obligate predators and have evolved to possess such instincts accordingly.