A class of young players is looking to dethrone Jannik Sinner and Carlos Alcaraz. Plus, the tradition of star-studded doubles at Indian Wells and more.

Chimpanzees have a reputation for being aggressive, while bonobos are often seen as their peaceful counterparts. This contrast has frequently been used to explain different sides of human nature.

Climate change remains a great challenge to rural livelihoods in Sierra Leone, especially in agricultural communities that depend on climate-sensitive resources. Although indigenous knowledge has been ...