Why do flamingos stand on one leg?

Answer: Conserves body heat in water

Better view of surroundings — Wrong. Standing on one leg doesn't improve their view—flamingos are already tall birds. One-legged stance is purely for heat conservation in cold water.

Conserves body heat in water ✓ — Correct! Thermoregulation strategy! Flamingos stand on one leg to conserve heat. Mechanism: (1) Legs submerged in cold water lose heat rapidly (thin, unfeathered). (2) Tucking one leg reduces surface area—50% less heat loss. (3) Leg tucked into feathers stays warm. Research shows more one-leg standing in colder water. Passive gravitational lock—requires no muscle effort (efficient). Also seen in other wading birds. May also rest leg muscles. Simple physics: minimize heat loss!

Looking taller to predators — Wrong. Height doesn't change standing on one vs two legs. Purpose is heat conservation—reducing exposed surface area in cold water.