A genus of green algae characterized by branching filaments with hair-like setae (bristle-like extensions).
From Greek 'chaete' (hair, bristle) and 'phora' (bearing, carrying), literally meaning 'bristle-bearer' or 'hair-carrying,' referring to the distinctive projections on these algae.
Chaetophora algae look like tiny green pom-poms under a microscope and are often found in freshwater springs and streams—they're so common that scientists use them as indicators of water quality and pollution levels.
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