Αχινοί, sea urchins, Seeigel, echinoidea, échinidés. Lots of them!
According to a National Geographic documentary, they are among the first moving animals ever created on Earth. As strange as it may sound, once I had a nightmare involving one of these animals...
Their presence in the sea, means that the ecosystem is thriving! So, it's a safe place to swim but take care not to step on one of these little guys (been there, done that :o) ). Some people like also to eat them but I find very cruel the way they have to be killed.
