Usually they have a need to feel powerful , an animal, like a dog or cat can't do the same damage a human could, and can't tell anyone about it. Plus the person just I guess wants to be a cruel human being. :(
Remember, everything has a reason. It all leads to a certain cause. They might beat animals to relieve stress stuck in them. It is just like cutting yourself or committing suicide. It is very bad, and needs to be stopped. But it is human nature to relieve stress. It can be stopped, with help and guidance. We can't shun these people. We need to help them get through the depression.
Cause it's not only animals haven't you heard about Child or Female Abuse ? some people are really sick , something like Paranoid but some people doing by their angry by their childhood they used to been abuse or they didn't get any attention by their parents so they making empty that feelings by hurting people or animals
Because people are evil animals, the cruelest animals of all. If Alecto wasn't helping animals, most of them would be dead... anyway, when I look into an animals' eyes, I see a world of good, because abuse and pain doesn't make them evil, but humans, their eyes are just cold, unforgiving and empty, full of hate... so who's abusing these humans, these cruel and evil animals?
I help fight against this on a regular basis, and still do not have a good answer. One of my rats was severely neglected and very near death when I got her from her breeder. The only thing I can think of, and this only applies to a select few people, is perhaps they do not know how to care for that particular animal properly. This was not the case with my rat. She had an infection in her eye, was dehydrated, and half starved. Happy to say she is fine and frisky now, and her name is Jules if you were wondering.
Because people are strange when their unwanted and faces comes outta the rain, THEIR STRANGE. haha, but seriously probably a primal urge or a frustration. Ever wonder why they poke animals with sticks to? O.o (Cave-man-ism)
Evil lurks....unexpectedly creeps.....stalks quietly.....festers and incubates.....those things coupled with the images that we are bombarded with daily are unfortunately the right recipe that triggers totally insane behavior by some......
very often a person expects the animal to behave with human charactersistics like if a dog know sit they expect the dog to understand english. animals dont speak our language and so you have to teach them, unfortunately some believe that when the animal doesnt listen it is being disrespectful and they think that hitting the animal will make it more obedient. it actually just makes the animal afraid of you and you will just get more bad behavior