PSYB30H3 Lecture Notes - Attachment Theory, Pleistocene, Exaptation
Document Summary
Variation that we differ from each other. Selection the observation that not only do we differ in our designs but our designs can have impact on how reproductively successful we are. Natural selection the evolution of adaptive characteristics because of the survival benefits bestowed on those having them. (eg giraffes necks) Sexual selection - the evolution of adaptive characteristics because of the reproductive benefits bestowed on those having them. Adaptations species typical evidence of special design. Do not directly contribute to adaptation, but are linked to an adaptive property/design. So it becomes incidently combined. (eg bones are white due to calcium) Random effects (noise in the system) - adaptively neutral. They don"t make a difference in reproductive system. Just passed along as noise in the system (eg earlobe shape) Time lag between when the problem happens and when the solution comes out (eg hedgehog curling up)
