Venomous snakes bite millions of people worldwide each year, killing at least 120,000. Many of them are poor people in rural areas of Africa without easy access to treatment.

© Brian Otieno for The New York Times

Communities must be able to move to solid ground while remaining whole.

© Josh Haner/The New York Times

Even quaint corners of the country are seeing a rise in drug violence and crime. Just ask the mayor of Morlaix, which has a population of about 15,000.

© Dmitry Kostyukov for The New York Times