Winter in Amden, Switzerland. | (WALTER BIERI/EPA-EFE/REX/Shutterstock)

Kenya Wildlife Service rangers load a tranquilized elephant onto a truck during a translocation exercise. | (REUTERS/Thomas Mukoya)

Two revelers celebrate Ash Monday by participating in a "flour war" in Galaxidi, Greece. | (REUTERS/Alkis Konstantinidis)

Japan's Kaori Sakamoto reacts after performing during the Women's Single Free Skating event at the 2018 Winter Olympics. | (EPA-EFE/HOW HWEE YOUNG)

A performer sprays molten iron against a wall to create sparks to celebrate the Chinese Lunar New Year in Zhangjiakou, China. | (REUTERS/Stringer)

Marjory Stoneman Douglas High School students participate in a CNN town hall meeting on gun violence in Sunrise, Florida. | (REUTERS/Michael Laughlin/Pool)

A girl sits on a couch after Israeli troops destroyed a Palestinian structure in the village of Al-Eizariya, West Bank. | (REUTERS/Ammar Awad)

Refugees and migrants wait to be rescued by aid workers after leaving Libya to reach Europe aboard an overcrowded rubber boat, 60 miles north of Al-Khums, Libya. | (AP Photo/Olmo Calvo)

A vendor salvaging her mannequin cries as she runs away from her burning stall during a massive fire at a clothing market in Port-au-Prince, Haiti. | (AP Photo/Dieu Nalio Chery)

Yemeni children play on a trampoline at a market in the old quarter of Sana'a. | (YAHYA ARHAB/EPA-EFE/REX/Shutterstock)

Indigenous people from Brazil protest to demand land demarcation and better health service in Brasilia. | (Joedson Alves/EPA-EFE/REX/Shutterstock)

Israeli scientists participate in an experiment simulating a mission to Mars near Mitzpe Ramon. | (REUTERS/Ronen Zvulun)

**See last week's best photojournalism**