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
<p>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</p>