BASICS OF ZOOLOGY: 




  The branch of biology that studies the animal kingdom is called zoology. It is the scientific study of all the animal kingdom's species combined.

 In the fourth century BC, Aristotle, a Greek philosopher, was the first to categorize all living creatures in general. He classified living things into plants and animals first, then went on to higher categories. Eventually, terms like zoology, botany, and biology were created.

Subsequently, Aristotle separated creatures into two classes: those with red blood and those without, which included crustaceans and insects. He then divided the organisms into groups based on their ability to walk, swim, and flow.

Up until the 16th century, when scientists started conducting in-depth investigation during the Age of Enlightenment, the Aristotelian taxonomy was followed. The study of zoology has grown significantly in complexity in recent years. Instead of classifying living things into five kingdoms, the animal kingdom is now further divided into smaller groups called Phylum, Class, Order, Family, Genus, and, lastly, Species.

Charles Darwin's theory of evolution by natural selection incorporated these advancements. Charles Robert Darwin first proposed the theory of organic evolution and provided observable support for it in the year 1859, Charles Robert Darwin introduced the hypothesis of organic evolution and the data supporting it from observations.

Divisions in Zoology:

Although the study of animals has long been a part of science, it is still relatively new. The current fields of zoological research have taken place prior to Hunter and Cuvier's comparative anatomical study on morphographs. Following comparative anatomy, zoology gradually grew to encompass the following sub-disciplines: • Zoography, also referred to as descriptive zoology.