S is for Sea Urchin – #AtoZChallenge

Here are three facts about sea urchins:

1: Sea urchins are commonly found in coral reefs.

2: There are almost 200 species of sea urchins.

3: The sea urchin has plate-like teeth to feed itself, located in the middle of the underside of the sea urchin.

Here is a cool video about sea urchins: