A sense is to a living being as an input device is to computer. Senses are physiological abilities of organisms that give data for perception. The senses and their classification, operation and theory are overlapping topics studies by a range of fields, particularly neuroscience, cognitive psychology, and philosophy of perception. The nervous system has a precise sensory system or organ, dedicated to each sense.
Members of the animal kingdom, including humans, have five major senses, sight, hearing, smell taste and touch. Some species have unique senses, like the birds have the ability to navigate by sensing the earth’s magnetic field. Moreover, many humans and animals have shown the capacity to sense things without sensing to sense things without using the know senses. Examples include dogs who know when their owner is hurt, animals who try to run away just before an earthquake, and humans who are remote viewers, psychic mediums, etc.