In this December 13, 2014 photo, Ricardo Alegria holds his donkeys by a leash as he yells to sell their milk in the streets of Santiago, Chile. Alegria, along with his brother Marco, has been selling fresh donkey milk for the past 25 years, and says it's recommended as a vitamin boost. Shot glass size cups of the drink sell for about $2 dollars. Half a liter, which is the most he says his donkeys can give in one day, sells for about $20 dollars. (Photo by Luis Hidalgo/AP Photo)

A woman rides a women-only bus as she returns from her college in Kathmandu January 6, 2015. Nepal's capital Kathmandu has introduced women-only buses in an attempt to reduce sexual harassment and groping on public transport, a senior government official said on Monday. The initiative will start with four 16-seater buses which will ply a popular east-west route across the city during peak morning and evening hours. (Photo by Navesh Chitrakar/Reuters)

A woman lays dead outside the Redemption Hospital on Saturday September 20, 2014 in Monrovia, Liberia. Ebola patients come to the hospital, which has become a transfer and holding center to intake Ebola patients, but there is no space and some die while waiting outside. Redemption is located in one of the poorest neighborhoods of Monrovia that locals call "New Kru Town”. Health workers are overwhelmed with a constant stream of new patients since the Ebola outbreak. (Photo by Michel du Cille/The Washington Post)

Residents, covered with mud and dried banana leaves, ask for money and candles from police before attending a mass celebrating the feast day of the Catholic patron Saint John the Baptist in the village of Bibiclat, Nueva Ecija, north of Manila, June 24, 2013. Hundreds of devotees took part in this annual religious tradition, which has been held in the village since 1945. (Photo by Cheryl Ravelo/Reuters)

A Thai security guard stands by a wall of sandbags in front of a factory at the Bangchan Industrial Estate area on the outskirts of the capitol city November 8, 2011 in Bangkok, Thailand. Over seven major industrial parks in Bangkok and, thousands of factories have been closed in the central Thai province of Ayutthaya and Nonthaburi with millions of tons of rice damaged. Across the country, the flooding which is now in its third month has affected 25 of Thailand's 64 provinces. Thailand is experiencing the worst flooding in over 50 years which has affected more than nine million people. Over 400 people have died in flood-related incidents since late July according to the Department of Disaster Prevention and Mitigation. (Photo by Paula Bronstein /Getty Images)

A Los Angeles County Fire helicopter flies over during the “Skirball Fire” which began early morning in Bel-Air, California, USA, 06 December 2017. An outbreak of several fires North of Los Angeles has occurred as one of the strongest Santa Ana winds forecast of the season is ongoing and expected to last several days. (Photo by John Cetrino/EPA/EFE)

A Guarani Mbya man smokes a pipe next to a cut tree as he occupies land as a protest against real estate developer Tenda which plans to build apartment buildings here, next to his indigenous community's land in Sao Paulo, Brazil, Thursday, February 6, 2020. In response to an injunction filed by the builder, a judge has authorized the eviction of the indigenous protesters from the builder's property. (Photo by Andre Penner/AP Photo)

The Economic and Social Research Council (ESRC) has announced the winners of a UK national photography competition in which we challenged young people aged 14–18 for their unique take on society and the social sciences by asking them to take a picture on the theme of “Where Do I Belong?” – ESRC Press Office. Photo: “Society hurts”. (Photo by Grace Ridge/ESRC)