Cold Climates Correlate With Big Bodies For Human Ancestors : NPR

A reconstructed Neanderthal skeleton (right) and a modern-human version of a skeleton are displayed at the American Museum of Natural History in New York in 2003. A new study confirms that early humans who lived in colder places adapted to have larger bodies.
Frank Franklin II/AP

The Neanderthal Giants really did exist…

Big bodies are good for cold places.

That’s the gist of a foundational rule in ecology that has been around since the mid-1800s: Animals that live in colder places tend to have larger bodies, especially birds and mammals that need to regulate their body temperatures. For example, some of the largest whale and bear species have evolved in the coldest reaches of the planet.

The rule applies broadly to modern humans too. Populations that evolved in colder places generally have bigger bodies… More about this article in the link below…

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