A marabou stork stands on an elephant carcass at a watering hole inside Hwange National Park, in Zimbabwe, October 23, 2019. REUTERS/Philimon Bulawayo TPX IMAGES OF THE DAY

A lion is seen approaching an elephant carcass at a watering hole inside Hwange National Park, in Zimbabwe, October 23, 2019. REUTERS/Philimon Bulawayo

A lion is seen approaching an elephant carcass at a watering hole inside Hwange National Park, in Zimbabwe, October 23, 2019. REUTERS/Philimon Bulawayo

A speckled ground squirrel feeds in a field near the village of Yushevichi, Belarus October 17, 2019. REUTERS/Vasily Fedosenko

A speckled ground squirrel feeds in a field near the village of Yushevichi, Belarus October 17, 2019. REUTERS/Vasily Fedosenko

A speckled ground squirrel feeds in a field near the village of Yushevichi, Belarus October 17, 2019. REUTERS/Vasily Fedosenko

A speckled ground squirrel feeds in a field near the village of Yushevichi, Belarus October 17, 2019. REUTERS/Vasily Fedosenko

Fatima, a two-year-old hippopotamus rescued from a circus, is fed at the zoo in Managua, Nicaragua September 12, 2019. REUTERS/Oswaldo Rivas

A dog licks a popsicle during an annual gay pride parade in Jerusalem June 6, 2019. REUTERS/Amir Cohen

Oliver Emocling, 23, who works for a magazine, leaves his neighbourhood in Caloocan City, Metro Manila, Philippines, November 29, 2018. Because of the long travel hours, Emocling not only lacks sleep, but also misses meals. "I usually don't get to eat breakfast or dinner unless I wake up really early, or eat out. When I get home, it's already 10 p.m., and my body is just craving sleep rather than food," he said. REUTERS/Eloisa Lopez SEARCH "LOPEZ SARAD" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

A confectioner checks a candied tangerine at Florian confectionery in Le pont Du loup, France, January 24, 2019. REUTERS/Eric Gaillard TPX IMAGES OF THE DAY

A confectioner soaks a piece of orange in a chocolate at Florian confectionery in Le Pont Du Loup, France, January 24, 2019. REUTERS/Eric Gaillard

ATTENTION EDITORS - VISUAL COVERAGE OF SCENES OF INJURY OR DEATH Saleh Hassan al-Faqeh holds the hand of his four-month-old daughter, Hajar, who died at the malnutrition ward of al-Sabeen hospital in Sanaa, Yemen, November 15, 2018. REUTERS/Mohamed al-Sayaghi SEARCH "POY GLOBAL" FOR FOR THIS STORY. SEARCH "REUTERS POY" FOR ALL BEST OF 2018 PACKAGES. TPX IMAGES OF THE DAY.

A deer eats at the Nairobi National Park, near Nairobi, Kenya, December 3, 2018. REUTERS/Amir Cohen

A tamed hawk attacks a rabbit during a traditional hunting contest in Almaty, Kazakhstan December 2, 2018. REUTERS/Pavel Mikheyev TPX IMAGES OF THE DAY

A tamed golden eagle attacks a rabbit during a traditional hunting contest in Almaty, Kazakhstan December 2, 2018. REUTERS/Pavel Mikheyev

A tamed golden eagle flies during a traditional hunting contest in Almaty, Kazakhstan December 1, 2018. Picture taken December 1, 2018. REUTERS/Pavel Mikheyev

A tamed hawk attacks a rabbit during a traditional hunting contest in Almaty, Kazakhstan December 2, 2018. REUTERS/Pavel Mikheyev

A hunting falcon catches a hare during a celebration by Egyptian clubs and austringers on World Falconry Day at Borg al-Arab desert in Alexandria, Egypt, November 17, 2018. Picture taken November 17, 2018. REUTERS/Amr Abdallah Dalsh

A pet cow grazes beside a seagull over a cultivated land in Gharo, Pakistan November 12, 2018. REUTERS/Akhtar Soomro

A seagull tries to eat a piece of fish at an artisanal fisherman's market in Valparaiso, Chile October 30, 2018. REUTERS/Rodrigo Garrido

Ring-tailed lemurs eat a piece of watermelon during the hot weather in Biopark zoo in Rome, Italy, August 2, 2018. REUTERS/Alessandro Bianchi

A Palestine sunbird eats the nectar of flowers as a bee flies over at Orange House garden in El-Mansouri village, near Tyre, Lebanon, Lebanon July 29, 2018. Picture taken July 29,2018. REUTERS/Jamal Saidi TPX IMAGES OF THE DAY

Traditional breakfast food is seen at the "Wistupiku" restaurant in La Paz, Bolivia, July 20, 2018. REUTERS/David Mercado

Croissants are seen at the breakfast buffet of an IBIS hotel in Moscow, Russia July 15, 2018. .REUTERS/ Kai Pfaffenbach

One week's worth of plastic waste, used and collected by Audrey Gan's family, is displayed in Singapore, May 22, 2018. "We started being more aware of the waste generated by our household when it was highlighted to us in our Buddhist teachings... that all this plastic waste is harming other beings on Earth," said Audrey. "We try to curb our desire to shop for new and unnecessary items. If we are really craving a drink of bubble tea, we bring our own containers to avoid the plastic cup and straw they come in. I use a cloth diaper for Kyler once he reaches home, but we use at least one disposable a day because we haven't figured out how to avoid leaks with cloth diapers overnight." REUTERS/Feline Lim

Audrey Gan (C), 31, poses for a portrait with her husband Leow Yee Shiang, 30, and their three-year-old son Kyler in Singapore, May 21, 2018. "We started being more aware of the waste generated by our household when it was highlighted to us in our Buddhist teachings... that all this plastic waste is harming other beings on earth," said Audrey. "We try to curb our desire to shop for new and unnecessary items. If we are really craving for a drink of bubble tea, we bring our own containers to avoid the plastic cup and straw they come in. I use a cloth diaper for Kyler once he reaches home, but we use at least one disposable a day because we haven't figured out how to avoid leaks with cloth diapers overnight." REUTERS/Feline Lim

A combination photo shows Audrey Gan (C), 31, her husband Leow Yee Shiang, 30, and their three-year-old son Kyler (top) and one week's worth of plastic waste they have collected, in Singapore, May 21, 2018. "We started being more aware of the waste generated by our household when it was highlighted to us in our Buddhist teachings...that all this plastic waste is harming other beings on earth," said Audrey. "We try to curb our desire to shop for new and unnecessary items. If we are really craving for a drink of bubble tea, we bring our own containers to avoid the plastic cup and straw they come in. I use a cloth diaper for Kyler once he reaches home, but we use at least one disposable a day because we haven't figured out how to avoid leaks with cloth diapers overnight." REUTERS/Feline Lim SEARCH "GLOBAL PLASTIC" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

A cabbage eaten by a bug is seen on a vegetable farm at the New Territories in Hong Kong, China April 22, 2018. Picture taken April 22, 2018. REUTERS/Bobby Yip

Local people visit Akauk Taung (a toll-hill) pagodas which were craved in the cliff outside Pyay, Magway District in central Myanmar April 14, 2018. It is home to the Ancient Pyu city ruins of Sri Ksetra, which is the only UNESCO world heritage site in Myanmar. Picture taken April 14, 2018. REUTERS/Ann Wang

The gorilla "Fatou" eats a birthday cake at the Berlin Zoo, Germany, April 13, 2018. REUTERS/Axel Schmidt TPX IMAGES OF THE DAY

A Komodo dragon, named Ganas, eats a raw egg at London Zoo in London, Britain, March 29, 2018. REUTERS/Toby Melville

People line up outside the non-profit Potsdamer food bank 'Potsdamer Tafel', that offers food to low-income and indigent individuals donated by supermarkets and stores in Potsdam, Germany, March 28, 2018. REUTERS/Fabrizio Bensch

A volunteers sorts and checks food quality at the non-profit Potsdamer food bank 'Potsdamer Tafel', that offers food to low-income and indigent individuals donated by supermarkets and stores in Potsdam, Germany, March 28, 2018. REUTERS/Fabrizio Bensch

A woman receives bread at the non-profit Potsdamer food bank 'Potsdamer Tafel', that offers food to low-income and indigent individuals donated by supermarkets and stores in Potsdam, Germany, March 28, 2018. REUTERS/Fabrizio Bensch

An orangutan eats matza, a traditional unleavened bread eaten during the upcoming Jewish holiday of Passover, in the Ramat Gan Safari Zoo, near Tel Aviv, Israel March 27, 2018. REUTERS/ Amir Cohen TPX IMAGES OF THE DAY

An orangutan eats matza, a traditional unleavened bread eaten during the upcoming Jewish holiday of Passover, in the Ramat Gan Safari Zoo, near Tel Aviv, Israel March 27, 2018. REUTERS/ Amir Cohen

A chimpanzee eats matza, a traditional unleavened bread eaten during the upcoming Jewish holiday of Passover, in the Ramat Gan Safari Zoo, near Tel Aviv, Israel March 27, 2018. REUTERS/ Amir Cohen

An orangutan eats matza, a traditional unleavened bread eaten during the upcoming Jewish holiday of Passover, in the Ramat Gan Safari Zoo, near Tel Aviv, Israel March 27, 2018. REUTERS/ Amir Cohen

A chimpanzee eats matza, a traditional unleavened bread eaten during the upcoming Jewish holiday of Passover, in the Ramat Gan Safari Zoo, near Tel Aviv, Israel March 27, 2018. REUTERS/ Amir Cohen

A pigeon and birds eat bread on a snow-covered path in the Parc Monceau as winter weather bringing snow and freezing temperatures continues in Paris, France, February 9, 2018. REUTERS/Benoit Tessier

A pair of Great Tits feed on bread hung onto branches after snowfall in Reinosa, Spain, February 9, 2018. REUTERS/Vincent West

A pair of Great Tits feed on bread hung onto branches after snowfall in Reinosa, Spain, February 9, 2018. REUTERS/Vincent West

A great tit leaves snow-covered bird feeder in Paris, February 8, 2018. REUTERS/Mal Langsdon

A great tit leaves snow-covered bird feeder in Paris, February 8, 2018. REUTERS/Mal Langsdon

A great tit and a blue tit perch on a snow-covered bird feeder in Paris, February 8, 2018. REUTERS/Mal Langsdon

Vegetarian food is seen at "Go Green" restaurant in La Paz, Bolivia, February 2, 2018. Picture taken in February 2, 2018. REUTERS/David Mercado

Quinoa grains are seen at the kitchen of "Go Green" restaurant in La Paz, Bolivia, February 2, 2018. Picture taken in February 2, 2018. REUTERS/David Mercado

An employee prepares a soup in vegetarian restaurant "Green Cuisine" in Minsk, Belarus February 1, 2018. REUTERS/Vasily Fedosenko

A monkey eats a lotus flower, during the annual Makha Bucha Day which celebrates Buddha's teachings, in Kandal province, Cambodia, January 31, 2018. REUTERS/Samrang Pring

A Veganburg vegan hotdog is seen in this illustration photo January 30, 2018. REUTERS/Thomas White/Illustration

A Veganburg vegan hamburger is seen in this illustration photo January 30, 2018. REUTERS/Thomas White/Illustration

A customer self-serves a plate of food inside the 'Indian Veg' vegetarian restaurant in north London, Britain, January 28, 2017. REUTERS/Hannah McKay

An endangered female high mountain gorilla from the Sabyinyo family eats inside the forest within the Volcanoes National Park near Kinigi, northwestern Rwanda, January 9, 2018. Picture taken January 9, 2018. REUTERS/Thomas Mukoya

An endangered female high mountain gorilla from the Sabyinyo family eats inside the forest within the Volcanoes National Park near Kinigi, northwestern Rwanda, January 9, 2018. Picture taken January 9, 2018. REUTERS/Thomas Mukoya

An endangered female high mountain gorilla from the Sabyinyo family eats inside the forest within the Volcanoes National Park near Kinigi, northwestern Rwanda, January 9, 2018. Picture taken January 9, 2018. REUTERS/Thomas Mukoya

Khansa, the Singapore Zoo's 46th orangutan baby, clings to its mother Anita during a media tour to showcase newborn animals at the Singapore Zoo January 11, 2018. REUTERS/Edgar Su TPX IMAGES OF THE DAY

Seagulls catching pieces of bread from tourists on a tour boat on the Bosporus in Istanbul, Turkey January 2, 2018. REUTERS/Goran Tomasevic

A squirrel is seen on pedestrians' hands in a park in Moscow, Russia December 19, 2017. REUTERS/Maxim Shemetov TPX IMAGES OF THE DAY

A swan looks for food in the Round Pond in Kensington Gardens in London, Britain, November 30, 2017. REUTERS/Hannah McKay