A living sailSourced
A blue colony drifts with its own little sail
Velella floats at the ocean surface with a small rigid sail that catches the wind. What looks like one blue animal is a colony of connected organisms. Winds can strand large numbers on beaches.
The miniature sailboat is a living colony.
Summary / translation: Unbubly · CC BY-SA 4.0
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Velella · Wikimedia contributors
Adapted, summarized and translated from the source. Adapted text is also available under CC BY-SA 4.0.
Reviewed: 2026-10-10