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An organism’s life history is the pattern of growth, development, and reproduction over the course of its life. Since fitness is a measure of the organism’s reproductive success, we know that natural selection will favour the life history strategy that results in the greatest number of offspring that survive to produce offspring of their own. … Continue reading Life History Strategies

A fundamental question in ecology is the question of how the vast diversity of species that we find on this planet originate.   Key to this is the idea of reproductive isolation, or the group of mechanisms which prevent two groups of living organisms from breeding with each other. Reproductive isolation can be subdivided into … Continue reading Where Do New Species Come From?