<P> Sea urchins can be found in all climates , from warm seas to polar oceans ( like the polar sea urchin Sterechinus neumayeri ) . They adapt their diet to their environment : In rich ecosystems they feed mainly on algae that allow a quick growth ; in less rich bottoms they adopt a slower metabolism , adapted to a less calorific diet . </P>
<P> Sea urchins can be found in all climates , from warm seas to polar oceans ( like the polar sea urchin Sterechinus neumayeri ) . They adapt their diet to their environment : In rich ecosystems they feed mainly on algae that allow a quick growth ; in less rich bottoms they adopt a slower metabolism , adapted to a less calorific diet . </P>
where do sea urchins live in the world
where do sea urchins live in the world
in all climates , from warm seas to polar oceans
in all climates , from warm seas to polar oceans