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Health & Medicine

Here’s what distorted faces can look like to people with prosopometamorphopsia

A patient with an unusual variation of the condition helped researchers visualize the demonic distortions he sees when looking at human faces.

Humans

These are the chemicals that give teens pungent body odor

Steroids and high levels of carboxylic acids in teenagers’ body odor give off a mix of pleasant and acrid scents.

Psychology

Timbre can affect what harmony is music to our ears

The acoustic qualities of instruments may have influenced variations in musical scales and preferred harmonies.

Animals

American bullfrogs may be threatening a rare frog species in Brazil

A search for environmental DNA from critically endangered Pithecopus rusticus frogs turned up DNA from invasive American bullfrogs instead.