Animals are not ours to eat, wear, experiment on, use for entertainment or for any exploitative purpose.
It is true that every being is enjoying life or suffering as a direct result of his or her own past actions. The animals in the factory farms may have been meat-eating human beings in a previous birth; we don't know, and it is not our place to judge.
Lions and other carnivorous animals do a lot of things besides eat meat. They live outdoors, not in houses; they don't wear clothes or drive around in cars; they usually sleep for many hours after eating a meal. Why cite just one of the many things that they do and argue that we should imitate them? This doesn't make much sense.
Lions and other carnivorous animals do eat meat, but that doesn't mean we should. They would die if they didn't eat meat. Human beings, in contrast, choose to eat meat; it isn't a physiological necessity.
Today's fishing industry supplies land farms with fish as well. Over fifty percent of the fish caught is fed to livestock on factory farms and "regular" farms. It is an ingredient in the enriched "feed meal" fed to livestock. Farm animals, like cows, who by nature are vegans, are routinely force-fed fish as well as the flesh, blood, and manure of other animals. It may take sixteen pounds of grain to make one pound of beef, but it also takes one hundred pounds of fish to make that one pound of beef.
By working to alleviate the suffering of animals you are working at the cause level of human suffering.
Knowing the truth about the hell-realms that animals have to endure, it would be wise of us to do our best now not to plant the karmic seeds that would cause us to be reborn as an animal in one of those hell realms.
Some people may argue that if the animals are treated humanely prior to being slaughtered, this justifies their confinement and slaughter. Is it ethical to rob beings of their freedom but give them a comfortable prison and provide them with food until they become fat enough to be slaughtered? Any way you look at it, farms are places where animals are kept in preparation to be slaughtered and ultimately eaten as food.
Farms, whether small or large, are places where slaves are kept. The animals are fattened up to be eaten, or exploited for their ability to make honey or milk, or for their fur, wool or body parts; they are kept as breeders to produce more animals who can in turn be exploited and ultimately sold, slaughtered, and eaten.
As humans, we do get to choose what we eat, and when we choose to eat a plant, we are eating (i.e., harming) just that plant, plus indirectly whatever nutrients that plant consumed over its lifetime (and we are also harming whatever beings may have been living on that plant or who were injured or killed in the harvesting process). But when we eat an animal, we are eating not just that animal, but also indirectly all of the plants and other beings that that animal ate over its lifetime - those plants became the flesh that we eat.
On average, most people consume between 100 - 120 grams of protein per day. Not only is that unhealthy, it's extremely dangerous, as the majority of the protein consumed is animal based.
Eating vegetables, fruits and grains rarely causes total destruction of the plant or tree on which the food grew; after harvesting, seeds remain to be replanted the next season. But this certainly does not happen when an animal is slaughtered - death is final; that animal will not reproduce again!
Most of the food crops raised in the world today are fed to livestock destined for slaughter for us to eat, and most of the water used is used to raise the food crops that are fed to those animals. It has been estimated that, because of the extraordinary amount of grain it takes to raise food animals, if we reduced the amount of meat we eat by only ten percent, that would free up enough grain to feed all the starving humans in the world. So when we choose to eat meat instead of vegetables, we are choosing to take food away from others who are hungry.
We enslave, torture and then slaughter animals to eat them, then when we eventually become sick from that we enslave, torture and kill more animals in laboratories in the hopes of creating drugs to enable us to continue with our animal-abusive lifestyle! Few of us look to the future (i.e., to our parents and grandparents), see the effects of an omnivorous lifestyle, and opt out of it before it makes us sick.
In fact, we would know ourselves that we are not meant to be meat eaters, and we would not have allowed ourselves to become conditioned to meat eating in the first place, if the effects of meat eating were felt right away. But since heart disease, cancer, diabetes, osteoporosis, etc. usually take many years to develop, we are able to separate them from their cause (or contributing factors) and go on happily eating an animal-based diet.
Arctic-dwelling Eskimos have no choice but to eat large amounts of meat and animal fat. But let's get our facts straight: according to the American Journal of Clinical Nutrition, Eskimos also have the highest incidences of heart disease and osteoporosis in the world and, in general, short life spans. Perhaps that is something to consider when we are faced with the choice of what to eat for dinner and unlike Eskimos most of us do have choices.
The number of human deaths due to hardening of the arteries and other similar diseases suggests that human beings were not meant to eat animals; our bodies are unable to digest the animal fat effectively and it ends up stored in our blood vessels, not to mention our waist lines, buttocks and thighs!
We have been conditioned, taught, and coerced by the agents of our culture (parents, grandparents, advertisers, food critic, etc.) to eat the flesh and drink the milk of other animals. Because of this conditioning, which has occurred over a long period of time (thousands of years), we have developed addictive eating habits and blinded ourselves to the facts of our biological system and its true needs.
I passionately feel that as long as we view ourselves as superior and other animals as exploitable our consciousness will remain stuck in a level of ignorance that will disallow a full realization of the truth underlying reality.
When I see a person wearing a fur coat, I see not only the coat but the animals who were cruelly abused, killed and skinned to make that coat, and also I see the person wearing that coat being reborn as a poor fox crazily circulating in a tiny cage waiting to be skinned. And I see the poor dairy cow who has been raped and exploited, and in the same picture, I see the new future dairy cow taking her place, in the form of that person putting milk in her coffee, today.
I'm totally into veganism and animal rights, but I'm not into being an angry and judgmental activist.
If we ourselves want to be free and happy then by enslaving and harming animals we will not be able to achieve our goal.
The ridicule you may endure from others when you speak up for animals can help you to hone your skills, enabling you to become better at articulating your message in an informed, compassionate, and communicative way.
Because we lack sharp claws, aren't very fast on our feet, and aren't exactly endowed with lightning reflexes, it would be very difficult if not impossible for us to run down an animal, catch it with our bare hands, and tear through its fur and skin in order to eat it. Biologically, we are designed to be frugivorous herbivores eating mainly fruits, seeds, roots, and leaves.
We are the only animals who steal and drink the milk from other species.