African swine fever is an incredibly contagious disease affecting pigs and wild boars. It almost always kills, and quickly: Mortality rates are about 100%, with most pigs dead within 10 days. (It doesn’t affect humans.)

When Emmerson Mnangagwa assumed office as president of Zimbabwe in late 2017, one of the immediate tasks he had was to rebuild an economy that had performed poorly for nearly two decades.

A rural farmer in Tanzania hovers over a wilting cassava plant with her phone. In seconds she gets a diagnosis of the disease affecting her plant and how best to manage it to boost her production.

The greatly excessive use of antibiotics in food production in recent decades has made many bacteria more resistant to antibiotics.

Cuba’s leaders are developing ostrich farms – and may breed crocodiles and rodents too – because traditional meats and eggs are so scarce in the country.