Here at Stockholm University, we have something called “Highlighted student paper of the week”.

This week PhD student Sigi Wallner-Hahn presents her research on seagrass beds and coral reefs in the Western Indian Ocean region. These ecosystems are becoming degraded and one reason seems to be overgrazing by increasing numbers of sea urchins.

To read the short highligther version, follow the link above. You will find a link to Sigi’s scientific article at the bottom of the page if you wish to read even more.

And this is what a sea urchin looks like on the inside.