A chimp-pig hybrid origin for humans? July 3, by John Hewitt, Phys. If, however, what you propose is an idea, rather than a technology, it can still be a valuable asset to have.
Matt Blitz 5 comments Marcus G. Nearly 80 million American households have a petwith a majority being a cat or dog. A lot of food is needed to feed all of these animals, so it should come as no surprise that pet food is a 21 billion dollar industry.
The domestication of cats came much later, perhaps aboutyears ago, with the first potentially domesticated cat discovered in a 9, year old grave. That said, the mass domestication of cats probably occurred at least a few thousand years after that and was directly related to the proliferation of agriculture.
The theory goes that as humans started storing grain and wheat, mice came along to eat it. As we all know, the natural and cartoon enemy of mice are cats. Over thousands of years, both animals have evolved or been bred to have certain traits become more pronounced or disappear entirely.
In terms of physical characteristics, domesticated dogs today have smaller skulls, paws and brains than their wolf ancestors. Dogs have also adjusted their behavior, becoming active during the day as opposed to nocturnal like they once were.
Domestic cats may be slightly smaller than their ancestors, but it is really their genetic and personality traits that separate them from their forebears. For instance, present-day cats are thought to be more docile and have better memories than their ancestors. Because of these changes and a more sedentary lifestyle due to be domesticatedboth animals have developed to require fewer calories and slightly different dietary requirements than their ancestors, who primarily lived off of raw meat.
This brings us to what these animals should be eating today, and what is generally included in their commercial pet foods.
Dietary needs for a dog differ from other animals, including humans. Canines need more fat than humans, which is their primary energy source. While dogs also need protein which helps build muscle mass and some amount of carbohydrates which helps with digestionhuman diets require more.
It also means that dogs have adapted to be able to eat a large variety of foods. On the other hand, cats do not eat like dogs, nor should they be eating dog food or a typical human diet.
For one, cats need to eat more meat due to the presence of an amino acid called taurine, which is only found in animal-based proteins.
Unlike humans and other animals, cats are unable to manufacture their own taurine and, therefore, need to get it from their food sources. Despite this fact, many dry cat foods use primarily plant based protein. Thus, if they are not getting a significant amount of moisture from their food, as they would in the wild, many cats tend to live in a perpetually mild dehydrated state.
The combination of many dry cat foods primarily being based on plant-based protein and lacking much in the way of moisture is generally thought to be why many house cats ultimately develop diabetes and kidney problems, among other related issues, later in life.
In either case, the order of the ingredients is key here, with the first item on the list being the primary ingredient and on down. Cats also need more thiamine, Vitamin A and Vitamin C than dogs and humans. Without food that specifically has these elements, cats will be undernourished.
This brings us back to humans. For instance, regular high intake of animal based Vitamin A which, as mentioned, pet foods tend to have a relatively high amount of in humans can cause a myriad of seriouseven fatal, complications.
For this reason, good quality vitamin supplements which are harder to find than you might think generally use plant based Vitamin A via carotenoids, like beta-carotene. In contrast, a meat-based Vitamin A source is already in the form your body needs, meaning you can potentially get too much of it in your system.
This is particularly a concern for pregnant women. Nor did it stop a pet store owner from eating dog treats for thirty days as a way to promote her store.
She was later featured on the Today Show.February When we were in junior high school, my friend Rich and I made a map of the school lunch tables according to popularity.
This was easy to do, because kids only ate lunch with others of . The Significance of Dreams and Dreaming in A Midsummer Night's Dream by William Shakespeare Its very ironic that these two completely different settings are side by side and yet the humans know nothing of what lives in woods but the fairies know of the humans.
(those not affected by the potion). In this essay, we will be looking at how. Essay on Humans Know Nothing reality that, "we don't know one-millionth of one percent about anything" (Knowledge 1).
Amusingly coming from a man who yielded the knowledge to invent an array of iconic devices, ranging from the light bulb to the motion picture camera, it eludes the actuality of how even though we are always looking for new.
Nothing Essay. to those who are in need is equivalent to walking past the drowning boy and refusing to help.
Furthermore, another philosopher by the name of Thomas Hobbes also provided evidence as to how humans are essentially bad. Humans Know Nothing Essay - We, as humans, are constantly on an ongoing journey to pack our knowledge hungry brains with more and more information.
Almost demoting knowledge to a drug for the fact that we are continuously seeking more of it like an addict. The following essay is reprinted with permission from The Conversation, an online publication covering the latest research. In , when there were just about one-tenth the number of cars on U.S.