- Joined
- Nov 15, 2019
- Messages
- 69
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Hello everyone,
I just want to share my little a little discovery with you guys.
After seen my sea urchins carrying snail shells, rocks on their back I decide to read more about it.
Studies reviewed the possible reasons would be to protect themselves against predators and/or full-spectrum light source, mainly against UV rays.
Then I decided to do a quick design for a 3d printed hat, and for my surprise they absolutely love it.
Since I replace the rocks and shells from their back with the hats, they never let it go, and I was astonished to see they moving the hats towards the light source. Which leads me to the conclusion they certainly use it against excessive UV rays.
![urchin_13.jpg urchin_13.jpg](https://www.reef2reef.com/data/attachments/1335/1335604-ff3cc229e73e92638b775d37bbb710bc.jpg)
I just want to share my little a little discovery with you guys.
After seen my sea urchins carrying snail shells, rocks on their back I decide to read more about it.
Studies reviewed the possible reasons would be to protect themselves against predators and/or full-spectrum light source, mainly against UV rays.
Then I decided to do a quick design for a 3d printed hat, and for my surprise they absolutely love it.
Since I replace the rocks and shells from their back with the hats, they never let it go, and I was astonished to see they moving the hats towards the light source. Which leads me to the conclusion they certainly use it against excessive UV rays.
![urchin_15.JPG urchin_15.JPG](https://www.reef2reef.com/data/attachments/1335/1335601-75adf08888b23de559a52b472626c778.jpg)
![urchin_1.jpg urchin_1.jpg](https://www.reef2reef.com/data/attachments/1335/1335602-0185a8ff2d6441a8237e755d8e7a9b6a.jpg)
![urchin_12.jpg urchin_12.jpg](https://www.reef2reef.com/data/attachments/1335/1335603-6615e6199aa803b07e3fca57dda0bf5d.jpg)
![urchin_13.jpg urchin_13.jpg](https://www.reef2reef.com/data/attachments/1335/1335604-ff3cc229e73e92638b775d37bbb710bc.jpg)