Excess weight among pregnant women may put the developing fetal brains at risk as early as the second trimester, a new study shows.
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A new evolutionary tree suggests powered flight may have evolved in feathered dinosaurs and early birds at least three different times.
Check out video of an experiment that offers visual proof of the way face masks cut droplet emission while people are talking.
El prototipo ruso, uno de los 167 registrados por la OMS, todavía no ha demostrado su eficacia y seguridad en pruebas con decenas de miles de personas
A new study quantifies the effect air pollution has on human life expectancy around the world. It’s not good news, researchers report.
