Could you imagine having thousands of feet? With no brain or backbone, sea stars rely on a water vascular system and thousands of tiny tube feet to move, sense, feed, and cling tightly to rocks in the shifting intertidal zone. These sticky little feet are like hydraulic suction cups helping sea stars pry open prey like mussels and hold firm against crashing waves. The stars of this video are Ochre sea stars found along the Pacific coast of North America. They can be a deep purple colour to brigh
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Reaching for the weekend like a sea star. 🌟 Sea stars move with their tube feet. These hundreds of "feet" line the arms of the sea star and are part of the water vascular system. In addition to movement, tube feet are also involved in feeding and respiration. They operate through hydraulic pressure and secrete a sticky chemical to stick onto things like rocks, wharfs and tanks. This sea star may be reaching for the weekend, but it is more likely waiting for a snack (it's feeding day!). Those tu
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