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  • Tags: Janice J. Beaty

On Pins and Needles Photo 3

Sea urchin shells seldom resemble the living creatures. The rows of round bumps represent spine attachments. In between are tiny perforations for the tube feet. – (Photo by J. Beaty)

On Pins and Needles Photo 4

Break off a spine of the slate-pencil urchin and it will grow a new one. These spines are purple outside and white inside and are used as chalk on some islands. In the Philippines wind chimes and even ‘bead’ curtains are made from the spines. (J.…