People who fled the violence from Islamic State-controlled northern Syrian town of al-Bab arrive in the rebel-held outskirts of the town, Syria February 3, 2017. (Photo by Khalil Ashawi/Reuters)

A female black lemur (Eulemur macaco), looks at a camera in its enclosure at Bioparc Fuengirola in Fuengirola, near Malaga, southern Spain, February 8, 2017. (Photo by Jon Nazca/Reuters)

Members of a comparsa, a Uruguayan carnival group, dance during the Llamadas parade, a street fiesta with traditional Afro-Uruguayan roots in Montevideo February 9, 2017. (Photo by Andres Stapff/Reuters)

A Hindu holy man, or sadhu, smokes marijuana in a chillum at the premises of Pashupatinath Temple, ahead of the Shivaratri festival in Kathmandu, Nepal February 15, 2017. (Photo by Navesh Chitrakar/Reuters)

Independent miners transport llamas to sacrifice them for good fortune during the year as part of Andean carnival celebrations, outside the Mina Itos on the outskirts of Oruro, Bolivia February 24, 2017. (Photo by David Mercado/Reuters)

A man dressed as Hindu Lord Shiva performs during a religious procession ahead of the Hindu festival of Maha Shivaratri, in Jammu February 23, 2017. (Photo by Mukesh Gupta/Reuters)

A reveller wearing a costume dances as she holds a dring during the carnival street parade in Valletta, Malta, February 25, 2017. (Photo by Darrin Zammit Lupi/Reuters)

Assi Mbengue nibbles as she prepares for the start of Las Palmas' Carnival Queen ceremony in Las Palmas, Spanish Canary Island of Gran Canaria, February 24, 2017. (Photo by Borja Suarez/Reuters)