Organism Physiology is the method in which many diverse living organisms are considered to have developed from earlier forms during the history of the earth that can be defined as Evolution. Several organisms have evolved as a result of environmental changes within their habitats. Example is a diagram of a whale and details about how the whale has evolved physiologically and has become adapted to fit the environment. Kingdom: Animalia, Phylum: Cordata, Class: Mammalia, Order: Cetacea, Sub-order: Odontoceti, Family: Delphinidae, Genus: Orcinus, Species: Orca. Whales occupy all oceans and major seas, even some are in larger river systems. They are very large animals. They can grow up to 100 ft. or more in length. They can weigh up to 200 tons or more. Whales live in families called pods. These pods vary in numbers and consist of family members and family friends. Whales live in these families their whole life. Group living is safer when other whales or sharks attack. It also makes it easier to find food. Whales are always migrating. They travel to find food, breed and have young. Whales do not have eyelids. They rely on thick oily tears to protect their eyes. Whales hear from little holes behind their eyes. They talk to each other by making high pitched sounds like whistles, clicks, squeaks, rattles, and groans. Whales inhabit all oceans and the seven seas; some also inhabit larger river systems. They are extremely social organism and use communication for the function of hunting, defense, and reproduction. In general a dolphins live pods of up to a dozen individuals. Dolphin pods can emerge temporally forming
References: Brakes, P., & Simmonds, M. P. (2011). Whales and dolphins: Cognition, culture, conservation and human perceptions. London, UK: Earthscan. Getten, M. J. (2006). Communicating with orcas: The whales ' perspective. Charlottesville, VA: Hampton Roads Pub. Co. Whales and Dolphins Website : Whales. (2011, March 11). Retrieved December 7, 2013, from http://dolphins-and-whales.zoomshare.com/11.html