Animals

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Animals always have been a fascination for human. We know this by studying the earliest human hunters who learned to hunt with swift and cautious in order to track the animals. Also from the idea in mystical power between man and certain birds or reptiles or mammals through myths. For example, the snake’s ability to shed its skin and thereby gain immortality; from the ancient Egyptian religion, in which the sacred gods took both animal and human forms; from the folk tales of the fox and the grapes, the tortoise and hare, the diligent ant and the courageous lion.

Human interest in animals did not go away with the coming of science. In contrast, the interest has spread and intensified so much that scientists today will not be pleased until they know every species that exists and, if possible, that ever existed. This encompasses an enormous number of species from organisms barely visible and to animals as large as whales. Anywhere from stationary sponges and sea anemones to agile and active mammals. There are an enormous rage of worms and even greater number of insects; spiders and other arachnids; crustaceans such as the lobster, crab, and shrimp; mollusks such as the clam, snail, octopus, and squid; tribes of fish and starfish; amphibian frogs and salamanders; reptilian snakes, turtles, crocodiles, and lizards: and birds that include some of the most graceful, exotic, and colorful of all animals.

There are more than a million species of animals already identified, except the actual number could be anywhere from 5 or 25 times greater. These large numbers indicate the diversity of species. The science of animals is call “zoology” is a centuries-long effort to understand the puzzling variety of nature.

The history of animals

A way to study animals is to trace the animals from their very first emergence as multi-celled forms, according to scientists that have happened more than a billion years ago. This history features a sequence of stages that certain types of animals predominated – specifically, trilobites, an extinct crustacean; fish; amphibians; reptiles: and mammals. The animal history also indicated a chronological outline of zoology from its beginnings with a creature call Aristotle.

Classification of animals

The attempt to classify all animals is difficult, and there is no agreement on all classifications, but the methods of classification become more polished.

Methods of classifying animals include categorizations of their behaviors, functions, and structures.

Morphology of animals

Morphological zoology is the study of animal structure. It includes gross anatomy: the size, shape, and proportions of animals; histology: the study of tissues: cytology: the study of cells; and paleontology: the study of fossils.

Physiology of animals

Physiological zoology is the study of animal function. It includes organism, organ, and cell physiology.

Behavior of animals

The science of animal behavior includes the study of instinct, social behavior, and learning as well as ethnology. Cognitive ethnology is pioneering in the field of animal intelligence. Researchers have discovered impressively high degrees of intelligence shown by chimpanzees, gorillas, and orangutans.

Ecology of animals

Animal ecology is the scientific views of how animals regulate their populations, how the animal populations link to the different kinds of environments, and how each creatures interact with one another through predation, parasitism, symbiotic cooperation, and nature’s policy of peaceful coexistence are all included in the field of animal ecology.