گل‌سان‌زیان

Anthozoa is a major group of marine animals that includes sea anemones, corals, and sea pens—creatures that spend most of their lives attached to the seafloor as polyps with tentacle-ringed mouths. These animals matter because they form the foundation of coral reef ecosystems and represent a significant branch of ocean biodiversity, with most species living in colonies that create complex underwater structures.

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