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It is very common for animals to kill much more than they need: https://en.wikipedia.org/wiki/Surplus_killing.

Elephants, which are herbivores, sometimes enjoy killing rhinos for fun: https://www.bbcearth.com/news/teenage-elephants-need-a-fathe....

House cats recreationally kill billions of birds and small mammals every year that they don't need or want to eat.

Chimpanzees have full-scale wars: https://en.wikipedia.org/wiki/Ngogo_chimpanzee_war

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Meanwhile we're in the first mass extinction event caused by a single species.

We're already in the company of the asteroid that wiped out the dinosaurs.

https://en.wikipedia.org/wiki/Holocene_extinction

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> House cats recreationally kill billions of birds and small mammals > every year that they don't need or want to eat.

"Recreationally" is carrying a lot of weight here. I suspect that cats kill birds and mice because that's their instinct; it has nothing to do with conscious thought, much less a need for recreation. And that probably is the explanation for most (maybe all) of your other examples as well.

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Why do you believe this? Do you believe cats and other animals have no consciousness, so every behavior they exhibit is just instinct? Or do you believe they have some conscious behaviors, but killing birds is not one of them, this thing in particular is just an instinct?

For the first position, I think it is quite clear to anyone who studies and spends time with animals that they have something that is at least of the same kind as our consciousness. I just don't see how you can ascribe the wide gamut of complex, situatuonally and mood appropriate but still varied behaviors of animals to being purely instinct driven.

For the second position, I would like to see some study or some rationale behind it - especially since cats don't kill every bird they encounter, so if it's an instinct, it must still have some trigger, and hunger is not a viable explanation for most of the killings referenced here.

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I wasn't arguing for whether cats have consciousness, and I agree that they do, to some extent. (We just lost a 23 1/2 year old cat who had lots of personality.) But killing birds or mice is one of their instincts. One of the triggers is nearness. Young cats will watch a bird through the window with their tail twitching, and the closer the bird is the more excited the cat gets. If they could get through the glass I'm pretty sure they'd go after it. Older cats (my old cat in particular) watched, but either they understand what glass is, or they're too tired to do much about it.
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I just meant recreationally to mean "not out of necessity for survival". And I don't think conscious thought is relevant for this specific thread, I was just responding to the question of whether other animals besides humans can be needlessly violent.
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The same can be said for humans. Where do thoughts come from?
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I guess I was very ignorant about the elephant example! Thanks for the links
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Animals generally have no qualms at all about killing or even just mutilating other animals. It often happens almost by accident - two animals might be playing together, one gets spooked, and it instinctively attacks and perhaps even kills the other one - this is commonly seen with people who befriend large predators, such as tigers in the infamous Siegfried and Roy tragedy, but it also happens a lot wherever animals interact with each other.

Specifically in regards to your ant example, anteaters and bears often bring similar levels of destruction to ant nests. And cats and other small predators often hunt just for the fun of it, killing but not eating their prey.

On the more purely painful evil side, invertebrates often consume their prey alive, inflicting agonizing deaths with no issues on whatever they may be eating. Plenty of vertebrates kill and consume their babies, especially when frightened. They also often abandon old and weak members of their packs, leaving them to die of hunger or cold or similar deaths.

This is not meant as some indictment of the animal kingdom - people do all of this too, of course; and have since time immemorial. It's just to show that, if we apply human moral standards to the animal kingdom, it's fair to call them violent, and yes, even much more violent than the average modern human.

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>Animals generally have no qualms at all about killing or even just mutilating other animals.

Humans generally don't either. Individuals do, but as a species humans regularly kill other humans.

>invertebrates often consume their prey alive

And humans use the oh so humane factory farms.

>cats and other small predators often hunt just for the fun of it, killing but not eating their prey.

>On the more purely painful evil side, invertebrates often consume their prey alive, inflicting agonizing deaths with no issues on whatever they may be eating.

Sharks are caught en mass, the fins cut off, and the sharks dumped back into the ocean to slowly die, for shark fin soup.

Have you heard of trophy hunting? Have you seen the pictures of mountains of bison sculls for the American West?

>Plenty of vertebrates kill and consume their babies, especially when frightened.

Even in our modern "1st world" society, scared teens still abandon newborns in dumpsters. Many societies throughout history did not consider babies "real people" until a certain age because they may need to abandon them if resources were particularly scarce.

>They also often abandon old and weak members of their packs, leaving them to die of hunger or cold or similar deaths.

Maybe you should read stories of cities under siege, famines, wars, governmental collapse, etc. Humans now live nice comfy lives most of the time, unlike animals “in the wild”. Human societies that lived closer to the edge of survival made callous choices about life or death you are spared from.

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I agree that humanity is guilty of all of these, and has done all of them at a much larger scale. I think I was pretty explicit about this in my comment as well.

My point was that we call humans who do this "violent" and even "evil". If we want to avoid considering humanity as special compared to the rest of the animal kingdom, as some in the thread were suggesting, then we have to either admit that animals are also violent and evil, or say that humans aren't. Note that I don't hold this view, personally, and think that humans are unique among currently living animals, and that these labels only make sense to be applied to humans. But not because of behavior, simply because humans have a unique level of both understanding and control over their actions - as proven by the many billions of humans who have never in their lives killed a human or even another bird or mammal.

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Humans have enough cognitive ability to stop themselves from killing for fun (so when they don't, we deal with them using human invented laws), while anteaters eat ants for nutrition.

Animals in general cannot reason at a high enough level to avoid instinctual behavior.

> if we apply human moral standards to the animal kingdom

Which we should not, since human moral standards are for humans. Animals can at best behave in a way that suits us.

Or in summary, since we can be nicer, we should. Animals can't, so making excuses for human evil saying "animals are more violent" is a non starter IMHO (no one is making excuses for humans here , AFAIK).

Of course we can define violence in a way that does not include morals, which would make my argument "defending animals" void. But my (probably not the most benign) interpretation was that the definition of violence used was one that included some sort of morality, as if animals could do better.

Very interesting convo, thanks.

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Humans are not the only ones:

> The chimp warfare described by this study, and previously by famed primatologist Jane Goodall, includes all the behaviors that we as humans consider to be the very worst: killing, torture, cannibalism, rape, and perhaps even genocide. The adult males of a social group, which usually number about 30 to 50 in size, daily patrol the edge of their group's territory. They will often kill any male or young chimpanzees they find, sometimes eating or physically brutalizing their victims in a manner that some researchers liken to torture. In some instances, one group will "invade" and annex the territory of another, killing all but the adult females, who are forced to incorporate into the dominant group. The idea of chimp genocide may sound strange, but they are one of only three animals that has been observed wiping out entire social groups. The other two are wolves and humans.

* https://archive.ph/https://www.theatlantic.com/technology/ar...

* Probably NSFW video: https://old.reddit.com/r/HardcoreNature/comments/18qjcpq/chi...

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Funny, I knew about the chimp wars but totally forgot until you mentioned it. Seems like I was biased in favour of all animals, lol.

I'll search for Goodall's literature to know more. It does sound to me that cognition and self awareness is a continuous function in the sense that there is no discrete threshold in which morals emerge.

Wolves are a very interesting example too, but I also remember something about the concept of "alpha" being discovered only in captivity wolf packs. Also need more reading.

Thanks for the links!

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Considering chimps and humans share - depending on source, 95-99% of DNA, I'd be much more willing to consider them closer to humans than animals. In fact, there are - biologist - voices who argue that they should be moved to the homo genus.
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Humans just have the cognitive ability to be violent on a larger scale. Otherwise I also don‘t really see much of a difference to animals.
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A fox in the hen house comes to mind. And cats.
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