Posts Tagged ‘ exo-skeleton ’

The Mighty Periwinkle

Jul 25th, 2011 | By
The Mighty Periwinkle

Periwinkles are well-adapted creatures that are used to their rocky habitat, even when waves pound on them every few seconds. For how small they are, they are very tough. They are even tough enough to erode rocks over time! Let me tell you how they do that.