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Q&A Can a "dune" worm actually swim in sand?

I watched this video. A network of pipes blows air at the bottom of a bathtub filled with sand. The sand behaves just like water. Objects can float or sink in it. Children can play in it. So, my c...

2 answers  ·  posted 6y ago by Christmas Snow‭  ·  last activity 6y ago by Christmas Snow‭

Question creature-design