north carolina aquarium - Robuta Search

https://www.wtkr.com/2017/06/15/sea-urchins-get-dental-checkup-at-the-north-carolina-aquarium

In the wild one way urchins trim their teeth is by scraping food from rocks and reefs.

https://www.neaq.org/about-us/press-room/press-releases/severely-entangled-north-atlantic-right-whale-found-dead-off-north-carolina/

Protecting the blue planet