Brazil's Lula sworn in, vows accountability and rebuilding

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The Benefits of Being Bilingual Can Be Seen in 11-Month-Old BabiesScientists Need to Stop Swooping in to 'Rescue' Developing Countries From Outbreaks

Psychologists Have Come Up With an Official Test to Measure Your Need For DramaTouching Robots in Their 'Private Parts' Turns Humans on, Study FindsArchaeologists Just Found Human Remains in The Mysterious 'Jar Plains' of Laos

Girl Mummy Reveals How Early American Lineages Were Wiped Out by European MigrationThis Scientist Was Almost Jailed For Knowingly Publishing Fraudulent Data

The Discovery of a Mysterious, Ancient Site Could Rewrite The History of Vikings in America

This Romantic Chart Tells You Whether or Not You're Going to Get DivorcedSurgeons Are Attempting Life-Saving Surgery on Teen With Huge Facial Tumour

Does Drinking Alcohol Actually Kill Off Your Sore Throat Germs? Science ExplainsEven Just One Workout Could Actually Save Your Life

HIV's Jump From Apes to Humans May Have Been Aided by an Unfortunate DeficiencyExperts Say These 9 Things Are The Secret to Living a Longer Life