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Interesting Engineering on MSN7d
480-million-year-old sponge discovered in China built Earth’s first skeletal reef
The discovery of a 480-million-year-old sponge in China has revolutionized scientists’ understanding of early reef ecosystems ...
A look at the risks and benefits of water fluoridation
Studies abound, but don't always agree on the impact of adding — or removing — fluoride from public drinking water ...