Introduction To Animals

Zoology is the study of animals and involves research in many aspects of animal life such as behaviour, diet, evolution, classification, and distribution. Animals are a major group of mostly multicellular, eukaryotic organisms of the kingdom Animalia or Metozoa. Aristotle was the one who divided the living world between animals and plants, and this was followed by Carolus Linnaeus, thus he is regarded as "The Father Of  Modern Taxonomy". Most known animal phyla  appeared int he fossil record as marine species during the Cambrian explosion, about 524 million years ago. The word "animal" comes from the latin word animalis (meaning with soul, from anima, soul). There are two types of animal; Multicellular and Unicellular animal. The animals are heterotrophs, meaning that they feed directly or indirectly on other living things. They are further subdivided into groups such as carnivores, herbivores, omnivores and parasites.

World comprises of many species of animals, and the most hearing news is about endangered species found all over the world. An endangered species is a population of organism which is at risk of becoming extinct because it is either few in numbers, or threatened by changing environmental or predation parameters. Endangered species is about 40 percent of all organisms as calculated by the International Union For Conservation Of  Nature. Some of the world's endangered animals which are on their extinction state from this world are Dhole, Blue Whale, Bonobo, Ethiopian wolf, Giant panda, Snow Leopard, One horned rhino, Walrus, Bengal tiger and many more. So to preserve these rare species strict actions should be taken.