DID YOU KNOW? Sea urchins can walk, using their tube feet to move along the seafloor. These feet are also how the sea urchin breathes. | Oceana
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DID YOU KNOW? Sea urchins can walk, using their tube feet to mov…
20.1K viewsJan 31, 2020
FacebookOceana
Imagine being a sea creature without the ability to swim! Sea urchins live on the seafloor and use their tube feet to move around. According to @whoi.ocean, their feet are controlled by a water vascular system. By changing the amount of water inside, sea urchins can extend or contract their feet for relatively speedy mobility. For protection, their spiny shell (called a ‘test’) wards off predators craving ‘uni,’ the edible part of an urchin. Sea urchins have been found in fossil records as far b
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Imagine being a sea creature without the ability to swim! Sea ur…
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FacebookSchmidt Ocean Institute
How Sea Urchins Move: The Secret of Their Tube Feet
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How Sea Urchins Move: The Secret of Their Tube Feet
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Tube feet for roaming, tooth-like plates for food-scraping — behold the mesmerizing sea urchin underside up close. (P.S. Those tooth-like plates, along with the spines, are strong enough for sea urchins to dig holes in stone to create sneaky ocean hideouts. Powerful!) | California Academy of Sciences
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