About 100 million years ago, during the heyday of the dinosaurs, reefs were built...
Fri, 12/04/2009 - 14:25
A Swimming Snail
Sea butterflies (also called pteropods) are sea snails aptly named: they are...
TOPP cartoon of Omoo
Omoo, a Great White Shark (Carcharodon carcharias), carries a satellite tag that...
These "elevator" rudists, an ancient bivalve, used one long heavy valve to anchor...
Where ocean currents were strong, ancient rudist “recliners” lay unattached on...
Rudist clams are mollusks that went extinct about 65 million years ago. They were...
How Diverse is That?
Students discuss the meaning of biological diversity. Students will compare and...
Tue, 12/01/2009 - 12:02