A group of elephants are seen near a watering hole inside Hwange National Park, in Zimbabwe, October 23, 2019. REUTERS/Philimon Bulawayo

A group of elephants and giraffes walk near a carcass of an elephant at a watering hole inside Hwange National Park, in Zimbabwe, October 23, 2019. REUTERS/Philimon Bulawayo

A group of elephants and giraffes walk near a watering hole inside Hwange National Park, in Zimbabwe, October 23, 2019. REUTERS/Philimon Bulawayo

A group of elephants are seen at a watering hole inside Hwange National Park, in Zimbabwe, October 23, 2019. REUTERS/Philimon Bulawayo

A group of elephants walk near a solar panel at a watering hole inside Hwange National Park, in Zimbabwe, October 23, 2019. REUTERS/Philimon Bulawayo

Elephants walk through the Maasai Mara National Reserve, Kenya, October 14, 2019. Picture taken October 14, 2019. REUTERS/Baz Ratner

People walk along a pier during sunset in the Black Sea port of Sevastopol, Crimea August 23, 2019. REUTERS/Alexey Pavlishak

People are silhouetted against the setting sun on top of the Drachenberg in Berlin, Germany, Germany, August 19, 2019. REUTERS/Fabrizio Bensch

Chinese and U.S. flags flutter near The Bund, before U.S. trade delegation meet their Chinese counterparts for talks in Shanghai, China July 30, 2019. REUTERS/Aly Song

Chinese and U.S. flags flutter near The Bund, before U.S. trade delegation meet their Chinese counterparts for talks in Shanghai, China July 30, 2019. REUTERS/Aly Song

People enjoy sunset at a lake on the outskirts of Minsk, Belarus June 4, 2019. REUTERS/Vasily Fedosenko

Pusha the cat, which adopted four orphaned baby squirrels and currently feeds and lives with them, lies at a local park of miniatures in Bakhchisaray, Crimea April 25, 2019. REUTERS/Alexey Pavlishak TPX IMAGES OF THE DAY

Pusha the cat, which adopted four bereaved baby squirrels and currently feeds and lives with them, lies at a local park of miniatures in Bakhchisaray, Crimea April 25, 2019. REUTERS/Alexey Pavlishak

Participants take part in the Mud Run event in Tel Aviv, Israel March 29, 2019. REUTERS/Corinna Kern

A Bulldog owned by Peter Festa yawns, at the American Kennel Club's Museum of the Dog during an unveiling of the clubs' most popular breeds in New York, New York, U.S., March 20, 2019. REUTERS/Carlo Allegri

A man refreshes himself and his dog at a fountain in Madureira Park in Rio de Janeiro, Brazil March 19, 2019. REUTERS/Ricardo Moraes

A man walks his dog George wearing tinted goggles to protect his eyes in Nice, France, March 15, 2019. REUTERS/Eric Gaillard

Men toast with their glasses of wine at a restaurant in Phnom Penh, Cambodia, October 18, 2018. REUTERS/Samrang Pring

People enjoy sunset beside a beach cabin on the pebbled beach in Cayeux-sur-Mer, France, October 13, 2018. REUTERS/Pascal Rossignol

Elderly people sit in the Jardin des Tuileries in Paris, France, October 12, 2018. REUTERS/Charles Platiau

Elderly women walk on a sidewalk in the Pius quarter in Ingolstadt, Germany, October 5, 2018. Picture taken October 5, 2018. REUTERS/Andreas Gebert

Kids cool off in the spray of water from an outdoor waterpark fountain in downtown San Diego, California, U.S. July 5, 2018. REUTERS/Mike Blake

A woman attends a moment of silence at 2:46 p.m. (0546 GMT), the time when the magnitude 9.0 earthquake struck off Japan's coast in 2011, during a rally in Tokyo, Japan March 11, 2018, to mark the seventh-year anniversary of the earthquake and tsunami that killed thousands and set off a nuclear crisis. REUTERS/Toru Hanai TPX IMAGES OF THE DAY

Children are seen in silhouette riding a tricycle along the Mississippi River Park at sunset in Baton Rouge, Louisiana, U.S., March 6, 2018. REUTERS/Shannon Stapleton

A dog licks the head of a Jacob sheep, in Ramot Naftali, Israel, February 21, 2018. Picture taken February 21, 2018. REUTERS/Amir Cohen TPX IMAGES OF THE DAY

A dog licks the head of a Jacob sheep, in Ramot Naftali, Israel, February 21, 2018. Picture taken February 21, 2018. REUTERS/Amir Cohen

A woman and her dog watch the sunset at Anchor Bay outside Mellieha, Malta, January 26, 2018. REUTERS/Darrin Zammit Lupi TPX IMAGES OF THE DAY

A woman walks her dog at sunset at Anchor Bay outside Mellieha, Malta, January 26, 2018. REUTERS/Darrin Zammit Lupi

A woman and her dog wait to watch the sunset at Anchor Bay outside Mellieha, Malta, January 26, 2018. REUTERS/Darrin Zammit Lupi

A woman gives her dog a kiss as they watch the sunset at Anchor Bay outside Mellieha, Malta, January 26, 2018. REUTERS/Darrin Zammit Lupi

A woman and her dog wait to watch the sunset at Anchor Bay outside Mellieha, Malta, January 26, 2018. REUTERS/Darrin Zammit Lupi

A woman and her dog wait to watch the sunset at Anchor Bay outside Mellieha, Malta, January 26, 2018. REUTERS/Darrin Zammit Lupi

A woman walks her dog at sunset at Anchor Bay outside Mellieha, Malta, January 26, 2018. REUTERS/Darrin Zammit Lupi

A woman and her dog watch the sunset at Anchor Bay outside Mellieha, Malta, January 26, 2018. REUTERS/Darrin Zammit Lupi

A woman and her dog watch the sunset at Anchor Bay outside Mellieha, Malta, January 26, 2018. REUTERS/Darrin Zammit Lupi

A girl holds a rabbit after being blessed by a priest outside San Anton Church in the neighborhood of Churriana, in Malaga, southern Spain January 17, 2018. Pet owners bring their animals to be blessed every year on the day of Saint Anthony, Spain's patron saint of animals. REUTERS/Jon Nazca

Two white horses seen head-to-head in the East Jerusalem neighbourhood of Beit Hanina, November 10, 2017. REUTERS/Ammar Awad SEARCH "AWAD HORSES" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Elderly people play petanque in a park in central Madrid, Spain December 7, 2017. REUTERS/Javier Barbancho

A woman walks her dogs along a beach in Vina del Mar, Chile December 3, 2017. REUTERS/Rodrigo Garrido

A visitor carries a dog in a bag at the "Christmas market for the human's best friend" event in Vienna, Austria, December 3, 2017. REUTERS/Leonhard Foeger

Two dogs are pictured at the "Christmas market for the human's best friend" event in Vienna, Austria, December 3, 2017. REUTERS/Leonhard Foeger

Boys swim in a stream during a heatwave in Islamabad, Pakistan June 5, 2017. REUTERS/Caren Firouz TPX IMAGES OF THE DAY

A boy kicks a ball as he plays soccer with his friends at Galle Dutch Fort in Galle, Sri Lanka May 19, 2017. REUTERS/Dinuka Liyanawatte TPX IMAGES OF THE DAY

A boy kicks a ball as he plays soccer with his friends at Galle Dutch Fort in Galle, Sri Lanka May 19, 2017. REUTERS/Dinuka Liyanawatte TPX IMAGES OF THE DAY

Atila, a trained therapeutic greyhound used to treat patients with mental health issues and learning difficulties, falls asleep as it gets caressed by three patients at Benito Menni health facility in Elizondo, northern Spain, February 13, 2017. REUTERS/Susana Vera SEARCH "DOG THERAPY" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY

People walk along Slea Had in Ventry, Ireland December 27, 2016. REUTERS/Clodagh Kilcoyne

U.S. President Barack Obama smiles on the 18th green at Kapolei Golf Club with friend Derrell Harrington during his Christmas holiday vacation in Kapolei, Hawaii, December 21, 2016. REUTERS/Hugh Gentry

U.S. President Barack Obama smiles after putting on the 18th green at Kapolei Golf Club with friends Bobby Titcomb (L) and Derrell Harrington during his Christmas holiday vacation in Kapolei, Hawaii, December 21, 2016. REUTERS/Hugh Gentry

U.S. President Barack Obama smiles after putting on the 18th green at Kapolei Golf Club with friends, Greg Orme (L) Bobby Titcomb (C) and Derrell Harrington during his Christmas holiday vacation in Kapolei, Hawaii, December 21, 2016. REUTERS/Hugh Gentry

U.S. President Barack Obama smiles after putting on the 18th green at Kapolei Golf Club with friends, Greg Orme (L), Bobby Titcomb (C) and Derrell Harrington during his Christmas holiday vacation in Kapolei, Hawaii, December 21, 2016. REUTERS/Hugh Gentry

Family members and friends of victims of an explosion at a fireworks market wait outside a hospital in Coacalco, Mexico, December 20, 2016. REUTERS/Henry Romero

Family members and friends of victims of an explosion at a fireworks market wait outside a hospital in Coacalco, Mexico, December 20, 2016. REUTERS/Henry Romero

Relatives and friends play cards at the funeral wake of Domingo Manosca, who according to relatives was a drug user, and his 5-year-old son Francisco Manosca, at a village community centre in Pasay city, Metro Manila, Philippines, December 20, 2016. According to relatives and neighbors, unidentified gunmen opened fire in their home, killing both the father and child. REUTERS/Ezra Acayan

Youths dive into a tidal pool as temperatures soar at Camps Bay beach in Cape Town, South Africa, December 11, 2016. REUTERS/Mike Hutchings

Fellow police officers in civilian clothes and friends attend the wake of officer Rancel Cruz, whom police investigators said was shot dead by a drug addict, in Manila, Philippines, October 19, 2016. REUTERS/Erik De Castro

Relatives and friends of policeman Rancel Cruz, whom police investigators said was shot dead by a drug addict, attend his wake in Manila, Philippines October 19, 2016. REUTERS/Erik De Castro

Friends, family and musicians came on stage after the final song "Purple Rain" during a tribute to late musician Prince, at the Xcel Energy Center in St. Paul, Minnesota, U.S. October 13, 2016. REUTERS/Craig Lassig

Friends, family and musicians came on stage after the final song "Purple Rain" during a tribute to late musician Prince, at the Xcel Energy Center in St. Paul, Minnesota, U.S. October 13, 2016. REUTERS/Craig Lassig

Jess Elderedge makes a 'mud angel' as a friend lays toilet paper around her during a party at sunset on the final night of the Deni Ute Muster in Deniliquin, New South Wales, Australia, October 1, 2016. REUTERS/Jason Reed SEARCH "UTE CULTURE" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES.