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Science and Nature

A Sand Dollar's Breakfast is Totally Metal

See the unseen at the very edge of our visible world. Get a new perspective on our place in the universe and meet extraordinary new friends. Explore big scientific mysteries by going incredibly small.

A Sand Dollar's Breakfast is Totally Metal

Season 5 Episode 18 | 3m 57s | CC

Their skeletons are prized by beachcombers, but sand dollars look way different in their lives beneath the waves. Covered in thousands of purple spines, they have a bizarre diet that helps them exploit the turbulent waters of the sandy sea floor.

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