Sea Lions Pier 39Plan

wildlife facts

Why do California sea lions haul out in large groups?

Hauling out in aggregations enables Zalophus californianus to rest, regulate their body temperature through thermoregulation, and establish social hierarchies, resulting in the characteristic 'piling' behavior observed at K-Dock.

Answer

Hauling out in aggregations enables Zalophus californianus to rest, regulate their body temperature through thermoregulation, and establish social hierarchies, resulting in the characteristic 'piling' behavior observed at K-Dock.

Last verified: 2026-06-06

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