ZOOLOGY 260 Lecture Notes - Lecture 5: Red Queen Hypothesis, Sarahan, Hominini
2 Feb 2017
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Document Summary
New niches may appear as the environment changes. Remember shape of growth curve and reason for dips in pops. Organisms constantly evolving to keep up w/ environment & other species. Not a specific end game, just constantly adapting. Adaptations to re-fit to environment and compete with other species (and inter-species) Monogamy- mates are more similar (physical/looks), unnecessary bc no competition. Parents donate (approx) 50% of their genes/dna when (sexually) reproducing. Dna is different/variation- some mutation could be possible to save species from extinction bc they"re not all identical (as in clones) Reciprocal altruism- 6 conditions for evolution of reciprocal altruism r equation. The belief that everything has been created perfectly, organisms (cheetahs) have reached their peak in evolution, no need to adapt any further. Extinction undermines teleology bc it suggest imperfectly created organisms and environmental change that is unforeseen. All 3 are subject to scalar change.
