Mati Diop examines the fate of 26 treasures — sometimes from their point of view — looted from Benin in 1892.

One of West Africa’s most tolerant societies has recently seen a string of assaults on L.G.B.T.Q. people after several social media influencers exhorted their followers to “hunt” gay men.

Climate change, civil conflict and growing resistance to insecticides and treatments are all contributing to an alarming spread of cases.