Hands move constantly during conversation. They signal emotion, stress a point, and form full languages such as American Sign Language. Behind this everyday motion lies a complex challenge. Each human ...

Joël Chevrier does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

This summer, as fires scorched portions of the Amazon rainforest in Brazil, and the country’s president, Jair Bolsonaro, dismissed international outrage about it, the choreographer Bruno Beltrão ...