Evolutionary ecology lies at the intersection of ecology and evolutionary biology. Ecology (from Greek grc οἶκος oikos, "house(hold" and grc -λογία -logia) is the scientific study of Evolutionary biology is a sub-field of Biology concerned with the origin of Species from a Common descent, and Descent of species It approaches the study of ecology in a way that explicitly considers the evolutionary histories of species and the interactions between them. Conversely, it can be seen as an approach to the study of evolution that incorporates an understanding of the interactions between the species under consideration. The main subfields of evolutionary ecology are life history evolution, sociobiology (the evolution of behavior), the evolution of interspecific relations (cooperation, predator-prey interactions, parasitism, mutualism) and the evolution of biodiversity and of communities. Life history theory is an analytical framework widely used in animal and human Biology, Psychology, and Evolutionary Anthropology which postulates Sociobiology is a neo-Darwinian and Socialism Synthesis of Scientific disciplines that attempts to explain Social behavior eVolution is the third Album by eLDee, it was due to be released in 2008 Behavior or behaviour (see spelling differences) refers to the actions or Reactions of an object or Organism, usually Distinguish from Corporation. Cooperation, co-operation, or coöperation is the process of working or acting together The Lotka–Volterra equations, also known as the predator-prey equations, are a pair of first order Non-linear, Differential equations frequently used Parasitism is a type of symbiotic relationship between Organisms of different Species. Mutualism is a Biological interaction between individuals of two different Species, where both individuals derive a fitness benefit for example increased Biodiversity is the variation of Life forms within a given Ecosystem, Biome or for the entire Earth. In biological terms a community is a group of interacting Organisms sharing an environment.