This is a modern day sea urchin, about 9 cm across, viewed from the top (on the left) and from the bottom. It is covered in little pimples which had hundreds of spines attached to them.
By Tony Morris
This is a modern day sea urchin, about 9 cm across, viewed from the top (on the left) and from the bottom. It is covered in little pimples which had hundreds of spines attached to them.
By Tony Morris