Animal forms inhabited Earth even before the evolution of the human form of existence. However, many years had passed when the first serious attempts were made at cataloging the multitudes of animal species. It is highly probable that many species would have been wiped off already before these studies had even commenced.
The ancient Europeans were the first race to sincerely undertake observation of the animal forms existing along with the human race and these people are credit with having cataloged many species with proper descriptions of their characteristics. Aristotle also comes to the fore with the mention of the roots of animal science. His writings in the period from 384 to 322 B.C. are much revered by scholars. This period was complemented by the works of scholars in Arabia and China, namely Al-Jahizz and Su Song respectively. The Roman contribution is largely attributed to Pliny the Elder. Till as late as the sixteenth century, zoology was not a separate scientific entity but co-existed with departments of anatomy and biology. This era led to the opening of the doors through which immense light was shed upon the field of zoology. And this happened with the dedicated efforts of the Italian schools and universities, and later backed by the University of Oxford. Europe became the hub of zoological research from here on and this led to the incorporation of the Royal Society of London by the Royal Charter. The studies and research gained momentum with time and the closure of the eighteenth century witnessed the carful and thorough observations of the whole animal kingdom.
At this point of time, another invention aided this flow of research, the microscope designed by Leeuwenhauk. The improvements in the design and working of the microscope resulted in detailed comprehension of the cell structure and the introduction of the cell theory. Britain’s Thomas Henry Huxley is regarded as a prominent figure in modern zoology due to his ideas of the morphology of animals. He centered his teachings at practical and laboratory experiments. And this system of knowledge dissemination is still in place. The field of zoology has borrowed a lot from the major biological discoveries and studies like the Origin of Species given by Charles Darwin. Carolus Linnaeus devised the protocol for naming the thousands of species.