Arctic Ocean acidification worse than expected

The Arctic Ocean will take up more CO2 over the 21st century than predicted by most climate models. This additional CO2 causes a distinctly stronger ocean acidification. These results were published in a study by climate ...

480-million-year-old fossils reveal sea lilies' ancient roots

Sea lilies, despite their name, aren't plants. They're animals related to starfish and sea urchins, with long feathery arms resting atop a stalk that keeps them anchored to the ocean floor. Sea lilies have been around for ...

These pink sea urchins have teeth that sharpen themselves

Sea urchins have five teeth, each held by a separate jaw in a circular arrangement at the center of their spiked, spherical bodies. Now, researchers reporting in the journal Matter on September 18 have discovered how the ...

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