New research shows that the earliest sponges were soft bodied and lacked skeletons, explaining why their oldest fossils are ...
5don MSN
Evolution of new physical traits in mollusks has declined and grown more predictable over time
Paleobiologist Geerat Vermeij is enthralled with mollusks. Their shells line the surfaces and fill the cabinets and drawers in his office on the second floor of the Earth and Planetary Sciences ...
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