When a yam is sliced, its cells break open, exposing natural compounds to oxygen in the air. Some yams contain polyphenols, natural antioxidants that react with oxygen, leading to colour changes.

When YG brought out a Trump impersonator to the stage in Los Angeles on March 15, he wasn’t the first to use his stage to mock a president. In September of 1963, following the bombing of a church ...

Madagascar’s population relies on wild yams for food to supplement small, seasonal and unreliable staple crops. Of Madagascar's 40 yam species, 33 are endemic, but at least 12 are threatened by ...