Behavior — a response to stimulus
Proximate cause (mechanistic): explains how actions occur in terms of genetic, neurological, hormonal, and skeletal-muscular mechanism involved
Venus fly trap example:
Ultimate cause (evolutionary): explains why actions occurs — based on their evolutionary consequences and history
Venus fly trap example:
Innate behavior vs. Learned behavior — a gradient
Keep in mind:
Choices include trade-offs
Choices are usually not conscious
Behavior of individuals varies within populations
Types of Behavior:
Foraging
Mating — mating behaviors can serve functions other than producing offspring