Science

Sweet Potatoes May Have Originated in Asia

57-milion-year-old leaf fossils from eastern India suggest that the worldwide-distributed morning glory family (Convolvulaceae), which includes sweet potatoes and many other plants, originated in the late Paleocene epoch in the East Gondwana land mass that became part of Asia. The sweet potato (Ipomoea batatas). Image credit: Llez / CC BY-SA …

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Researchers Create Single-Injection Vaccine for Poliomyelitis

A group of researchers at the Massachusetts Institute of Technology (MIT) has developed an injectable nanoparticle formulation of the inactivated polio vaccine that releases multiple pulses of stable antigen over time. This new vaccine could make it easier to immunize children in remote regions of Pakistan and other countries where …

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Giant Hammerhead Flatworms Invade France and Its Overseas Territories

An international team of researchers led by Dr. Jean-Lou Justine of the Muséum National d’Histoire Naturelle, Paris, has identified at least five species of invasive hammerhead flatworms living in metropolitan France, a few European countries, and overseas French territories in three continents. Justine et al report new findings obtained mainly …

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