Slide 1 + Slide 2 Reciprocal altruism: One organism provides a benefit to another in the expectation of future reciprocation Assumes that cheaters can be identified/punished…

Slide 1 Predators can shape evolution in their preyUroplatus phantasticus Dendrobates azureus Cruziohyla craspedopus Dermal fringes Slide 2 Predator evolution pushed by prey…

Slide 1 FAMILY VIOLENCE A DARWINIAN PERSPECTIVE By: Nicole Kessler Slide 2 Fairy Tales  The narrative histories of western cultures have been rife with evil step-parent…

Slide 1 Types of Social Interactions The actor in any social interaction affects the recipient of the action as well as itself. The costs and benefits of interactions are…

Announcements Number of eggs / size of litter Hatching order / Asynchrony in hatching Sex of offspring Parental favoritism Likely occurs when resources are variable and adults…

Animal Behavior Chapter 29 What is Behavior?? Behavior – observable and coordinated responses to environmental stimuli Genetic or Learned or Both??? “Nature or Nurture”…

Announcements Number of eggs / size of litter Hatching order / Asynchrony in hatching Sex of offspring Parental favoritism Likely occurs when resources are variable and adults…