Which statement best describes proximate vs ultimate causation in behavior?

Which statement best describes proximate vs ultimate causation in behavior?

• A. Proximate explanations describe evolutionary reasons.
• B. Proximate explanations describe immediate neural and hormonal mechanisms.
• C. Proximate explanations describe immediate mechanisms; ultimate explanations address evolutionary reasons.
• D. Ultimate explanations describe day-to-day hormonal fluctuations.

Answer: (C)

Think in terms of how and why. Proximate explanations describe the immediate mechanisms behind a behavior—the neural circuits, hormones, sensory cues, and developmental factors that cause the behavior to occur right now. Ultimate explanations, on the other hand, address the evolutionary reasons the behavior exists—the function it serves and its history across species. For example, consider a bird that sings. The proximate side involves the brain’s song-control circuits and rising testosterone that enable singing, plus the sensory learning that shapes the exact song. The ultimate side asks why the song evolved in the first place: to attract mates and defend a territory, thereby enhancing reproductive success and survival over generations. This distinction is why the statement describing proximate explanations as immediate mechanisms and ultimate explanations as evolutionary reasons is the best way to capture the difference. Proximate accounts show how a behavior happens, while ultimate accounts explain why it is advantageous from an evolutionary perspective.

Think in terms of how and why. Proximate explanations describe the immediate mechanisms behind a behavior—the neural circuits, hormones, sensory cues, and developmental factors that cause the behavior to occur right now. Ultimate explanations, on the other hand, address the evolutionary reasons the behavior exists—the function it serves and its history across species.

For example, consider a bird that sings. The proximate side involves the brain’s song-control circuits and rising testosterone that enable singing, plus the sensory learning that shapes the exact song. The ultimate side asks why the song evolved in the first place: to attract mates and defend a territory, thereby enhancing reproductive success and survival over generations.

This distinction is why the statement describing proximate explanations as immediate mechanisms and ultimate explanations as evolutionary reasons is the best way to capture the difference. Proximate accounts show how a behavior happens, while ultimate accounts explain why it is advantageous from an evolutionary perspective.