In Florida, correspondent Martha Teichner goes searching for sand dollars – cousins of sea urchins and sea stars – with naturalist Kristen Williams (a.k.a. The Seashell Mermaid). She also goes to the California Academy of Sciences' Steinhart Aquarium in San Francisco to learn what makes these sea creatures so special. (Originally broadcast April 12, 2026.)
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Hunting for sand dollars
In Florida, correspondent Martha Teichner goes searching for sand dollars – cousins of sea urchins and sea stars – with naturalist Kristen Williams (a.k.a. The Seashell Mermaid). She also goes to the California Academy of Sciences' Steinhart Aquarium in San Francisco to learn what makes these sea cr
Published August 2, 2026, 2:25 PM
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