This article is part of a Nature series examining data on ethnic or racial diversity in science in different countries. See also: How UK science is failing Black researchers — in nine stark charts.

Why do people defend social systems that oppress them? Why do the marginalized sometimes work to uphold structures and arrangements that limit their potential? These questions are not just ...

Caste is an ancient system of social hierarchy based on one’s birth that is tied to concepts of purity and social status. Its history, evolution and current state are complicated. A move to outlaw ...

Vikki Velasquez is a researcher and writer who has managed, coordinated, and directed various community and nonprofit organizations. She has conducted in-depth research on social and economic issues ...

CHRISTIANE AMANPOUR, CHIEF INTERNATIONAL ANCHOR: And turning now to the United States, where our next guest says the death of Tyre Nichols is the latest tragedy to shine a light on the nation’s ...

Sam Cornelius knew that something was amiss when his job performance review unexpectedly took a huge hit one year. It was 2013, and Cornelius had been working as a software engineer in the US for an ...

FILE - Members of the audience listen to a speaker at a rally organized by National Conference of Dalit Organisations in New Delhi, India, Sunday, Dec. 5, 2005. Dalits, who belong to the lowest of ...