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Cnidarians (Phylum Cnidaria) are a group of animals that includes jellyfish, corals, sea anemones, and hydras. The basic form of the cnidarian body is quite simple and consists of a gastrovascular cavity with a single opening through which food is ingested and waste is released.
Ten Facts About Jellyfishes
Jellyfish have a bad reputation for the threats they can pose to swimmers and holiday makers visiting beaches around the world.
Jellyfish (Class Scyphozoa)
Jellyfish are delicate, soft-bodied animals. They are invertebrates—they have no bones, exoskeleton, or shell to protect or support them. Instead, the water in which they live provides their body with the structural support it requires.
The Life Cycle of a Jellyfish
The most recognized image of a jellyfish is that of the adult jellyfish, also called a medusa, with its bell-shaped body and long tentacles. But there is more to a jellyfish than a medusa.
Ten Facts About Coral
In this article, I'd like to explore ten things we should all know about coral, what makes them animals and what makes them so unique.

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