Model Perspective
Sep 3, 2023 · Fundamentals
What Universal Rules Shape the Extreme Sizes of Earth’s Animals?
Scientists have identified several universal ecological principles—such as Bergmann’s rule, Allen’s rule, the square‑cube law, island effects, and Lilliputian/giant trends—that explain why animals range from massive elephants to tiny frogs, linking climate, body proportions, and evolutionary pressures.
Allen's ruleBergmann's ruleanimal size
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