Meet the very shy, red volcano sponge

  • Terry Lilley / Special to The Garden Island

    Sponges come in many colors, but none of them have mouths, stomachs, gills or organs.

Do you know that we have bright-red, underwater volcanoes here in Hawai‘i, and they are very common? They are called the red volcano sponge, and they cover the sea floor on certain reefs, and look like six-inch-tall, mini red volcanoes erupting. It it is quite an amazing sight to see, but you will need an underwater flashlight because these sponges do not like sunlight and live in the shade of caves, piers, jetties or even in old shipwrecks.

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