Shark Data Suggests Animals Scale Like Geometric Objects
Despite their wide variety of sizes, niches and shapes, sharks scale geometrically, pointing to possible fundamental constraints on evolution.
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For centuries, biologists have wondered if life forms follow the two-thirds scaling law, where surface area increases roughly as fast as volume to the two-thirds power.
Recently, researchers used CT scans and digital tools to calculate the surface areas and volumes of an ancient and diverse animal lineage: sharks.
if the object’s geometry and shape remain the same as it gets bigger, then its surface area will increase roughly as fast as its volume to the two-thirds power.
Research suggests that life forms may follow this scaling law, implying underlying constraints fundamental to evolution.
Author summary: Sharks scale geometrically, revealing possible fundamental constraints on evolution.
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