Tube anemones live in a soft tube they build themselves. The building material comes from special cells that shoot out sticky threads!
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Tube anemones are ocean animals that look like a puff of long, wavy tentacles. They live in sand or mud on the sea floor, inside a tube they make.
Ptychocysts are only found in tube anemones. Each one is a tiny capsule with a long thread inside. Most thread cells roll their thread up in a coil. A ptychocyst keeps its thread folded back and forth, like a paper fan.
Scroll up to the 3D model and press Fire the thread, then Build the tube.
The threads that shoot out of ptychocysts are sticky and don't sting. They tangle together with slime and bits of sand to make a soft, felt-like tube.
The tube is the anemone's home. When danger comes, the anemone can pull its tentacles in and slide down into its tube to hide.
The tube is made from lots and lots of tiny threads woven together. It is a bit like how people make felt from tangled wool.
By Deep Look. Good for older kids.
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