BIO153H5 Chapter Notes -Taxis, Reciprocal Altruism, Stepfamily

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6 Dec 2013
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How do they find their way back? (fig. 51. 1: the proximate and ultimate levels of causation are complementary. This behavior is highly flexible and would change in a way that maximizes its fitness. (fig. Who should i mate with: sexual activity in anolis lizards, males become active in january and begin establishing territories. (fig. 51. 4a: females lay an egg every 10 14 days. By the end of the breeding season, females will lay an amount of eggs equal to twice their body mass: what causes these dramatic seasonal changes in behavior? (fig. Their tail feathers are about 15% longer. (fig. 51. 7: females preferred to mate with long-tailed males, data from this experiment reinforced the fact that animals make decisions in a way that maximizes their fitness. 51. 8: to determine where north is, homing pigeons appear to use the sun during the day and the stars at night.