Have you ever encounter sponges or seaweed that moves? Well, is not illusion and most likely you have just encounter the real camouflage master – Velcro Crab (
Camposcia retusa)!
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The crab are so smart and select only suitable sponges, algae, coral, detritus, and any items that is available onto its body to match its background.
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Holding of these items firmly on their body made possible with dense hooked-hairs that are all over their body. The hairs act like Velcro which it is named after.
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The attached sponges and algae often continue to grow. The crabs move very slowly and when they stay still, it is almost impossible to spot them.
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The underside of the Velcro crab. Even the underside is also covered with bits and pieces of the materials that matches the background.
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Another Velcro crab that doesn't looks like a crab at all!
Many of the technology that we use today, a lot are from the animals, from the nature that some don't even know their existence. So, who invented Velcro? Who use the Velcros technology most widely? Human or crabs?