Echinoderms Explained: Sea Stars, Sea Urchins, and the Ocean’s Weirdest Hydraulics
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In this deep-dive episode of Wildly Curious, Katy Reiss and Laura Fawks Lapole crack open the bizarre, beautiful world of echinoderms—the “spiny-skinned” sea creatures that are hard on the outside, squishy on the inside, and powered by a literal hydraulic system.
We’re talking sea stars, sea urchins, sand dollars, brittle stars, feather stars, and sea cucumbers—a group that looks like it shouldn’t make sense… until you learn the rules.
🌊 The water vascular system and how tube feet work like living…
The skinny
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