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Psychoactive substances helped spur Andean civilization, and breaking barriers to education
Sex-reversing frogs, and Europe’s rising rates of a deadly tick-borne disease
Making drugs in space, the man who fed India, and what narwhals can teach us about changing seas
Why tracing cyclosporiasis is so tough, and a digestible probe for the microbiome
A vest for blocking cosmic rays, and updates on NIH funding