A Backward Glance into the History Amazing Fishes Annual Production Value Australian Cancer Cure Proved on Domestic Animals Before You Buy Your First Pet Behold The Prince of Persia Best Tips To Plan Cat Declawing The Truth Cat Litter Box Health Cats Are Very Lovable Creatures
A Backward Glance into the History
Have you ever wondered where "today's cat" came from?
I have and so I began a little research on the history of cats.
Apparently no one really knows when or how "the cat" first appeared on our planet.
According to some sources it is said that Miacis, a weasel-like animal that lived about 40 or 50 million years ago is the cat's closest ancestor.
I have not been able to find any pictures or drawings of this animal, that is supposed to be the father/mother (if you will,) of all land-dwelling carnivores, including the dog.
Since I cannot prove otherwise, I will accept this information for as close to the truth as I can get.
About 64 families of fish are monotypic as they contain only one species. The overall total of the fish comes to about 32,500 at present.
fish respire through gills present on either side of the pharynx. The gills are made up of thread-like structure known as filaments. Each filament is supplied by the capillary network which increases the surface area for the easy exchange of oxygen and carbon dioxide. fish draw the oxygen rich water through their mouth and pump it over the gills. In some fish the capillary blood flows in opposite direction through counter current system. The gills pass the water poor in oxygen to the gill openings present on the sides of the pharynx. Sharks and lampreys have multiple gill openings while some fish have single gill opening. The gill openings are covered by a protective covering called as operculum.
Annual Production Value of the Domestic
Annual Production Value of the Domestic Animation Industry Has Exceeded 18 Billion - The Animation I by jekky
in News / Business News (submitted 2010-10-29)
According to HKTDC's study shows that the market throughout Asia licensing business experience, about one percentage point increase in GDP for each, can be licensed product sales increased by 1.4%. The global top 30 most valuable brand of view, was more than the product business to expand by licensing the brand in the world influence.
"Brand Licensing" Industry will be the 21st century knowledge-based economy in the emerging industry.
Chinese animation has 80 billion yuan gap
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Differences Between Domestic Animals and Wild Animals - Other
Differences Between Domestic Animals and Wild AnimalsÂ Â by Animal Husbandry
in Other Â Â (submitted 2011-10-08)
When men gave up their nomadic life and settled down, men took up animal husbandry. Animals were domesticated to meet human needs. Over generations, domesticated animals have transformed and become very different from their wild ancestors.
At the first stage of domestication, men did not make a random selection of animals. There were a lot of factors involved in their consideration. Only animals that exhibited the following characteristics were selected for successful domestication:
Animals that consume food of low cost and easily supplied by humans
Animals that are reproductive and have high growth rates
Animals that can mate and breed in containment
Animals that exhibit calm and predictable behavior
Animals that are friendly towards humans
Animals that enjoy cooperative group living
Those are the reasons why dogs were selected to help humans initially in hunting and gathering and later in taking care of animals on the farms. Those are also the reason why cats were selected to help humans guard their food.
Pigs, cows, sheep, horses, goats and chickens also met the selection criteria. They were adopted and domesticated to give men food, labor and many other products.
In their practice of animal husbandry, farmers have transformed farm animals and the way they live. Animals are kept in captivity, bred, fed and raised by humans. More female animals are kept than male animals to serve reproductive purposes. Only a small number of large male animals with desirable qualities are kept for breeding. Most of the male animals are slaughtered after a young age. In some cases, male animals such as horses and buffalos are kept to provide labor on the farm. Otherwise, they will be slaughtered to provide meat and other products such as leather and wool for humans.
With the intervention of humans, domesticated animals have become genetically different from wild animals. Domestic animals have developed characteristics favorable to their mutual existence with humans. Compared to their wild ancestors, domestic species often have smaller size, smaller teeth and heavier weight. This is probably because their need to fight for survival in the wild has been diminished. Most domesticated animals are raised to provide meat. Thus, they are well-fed by humans and become fatter than their ancestors.
Take one animal that has been domesticated by humans for thousands of years for example. Farm pigs originate from wild boars. Nowadays, farm pigs have developed a lot of characteristics that are different from their ancestors. All wild boars have tusks (long pointed teeth that come out from their mouth). These tusks help to protect them from predators. Domesticated pigs have lost their use for these tusks. Thus, nowadays, we can hardly find any tusks on farm pigs. Domestic pigs are also fatter and much less muscular than their wild counterparts. Wild roars have longer legs and bigger snouts than farm pigs. These characteristics help wild pigs run faster and allow them better scenting ability, which are no longer necessary for domesticated pigs.
It is undeniable that domesticated animals and wild animals share their ancestors, and thus still sharing a lot of common features. However, since humans adopted certain animals in their practice of animal husbandry, domesticated animals have become hugely different from their wild counterparts. These changes did not take place overnight. They took place only after thousands of years and have changed these animals not only by their look but also genetically.
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