How I became part sea urchin | Catherine Mohr

As a young scientist, Catherine Mohr was on her dream scuba trip — when she put her hand right down on a spiny sea urchin. While a school of sharks circled above. What happened next? More than you can possibly imagine. Settle in for this fabulous story with a dash of science.

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23 Comments on How I became part sea urchin | Catherine Mohr

  1. Tbh I expected a story of someone identifying as part sea urchin. This was a pleasant surprise. I wish she went into more detail about the calcium transference though.

    • +Rob Kinney That’s exactly what the calcium transference is. Her body dissolved the spine to use its calcium to help repair her pelvis. And like the original comment says, I wish she went into more detail about how exactly it works. If a foreign source of calcium can be used in such a way, could there possibly be a way to utilise it in a new innovative form of treatment?

    • +B T osteoblasts uptAke calcium from the blood to make new bone. In response the parathyroid hormone which stimulates bone resorbtion throughout the body by osteoclasts and improved absorbtion from the diet. Solid salts of calcium become ionized in the blood and then are redeposited by osteoblasts as calcium phosphate.

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