Densely built houses sift toward the farmlands due to the population growth in Kathmandu, Nepal November 14, 2019. REUTERS/Navesh Chitrakar 

A general view of houses in Kirkenes, Norway, October 24, 2019. REUTERS/Maxim Shemetov 

Large crocodiles are seen in the Tarcoles River, a river with one of the highest crocodile population in the world, in Tarcoles, province of Puntarenas, Costa Rica, July 16, 2019. REUTERS/Juan Carlos Ulate 

Large crocodiles are seen in the Tarcoles River, a river with one of the highest crocodile population in the world, in Tarcoles, province of Puntarenas, Costa Rica, July 16, 2019. REUTERS/Juan Carlos Ulate 

A large crocodile is seen in the Tarcoles River, a river with one of the highest crocodile population in the world, in Tarcoles, province of Puntarenas, Costa Rica, July 16, 2019. REUTERS/Juan Carlos Ulate 

A large crocodile is seen in the Tarcoles River, a river with one of the highest crocodile population in the world, in Tarcoles, province of Puntarenas, Costa Rica, July 16, 2019. REUTERS/Juan Carlos Ulate 

Thousands of starlings fly in a 'murmuration' as they return to roost at dusk near Ely in Cambridgeshire, Britain December 24, 2018. REUTERS/Hannah McKay TPX IMAGES OF THE DAY 

A Farmers wearing a flat cap attends sheep sales at the livestock market in Melton Mowbray, Britain September 18, 2018. REUTERS/Darren Staples 

People on inflatable boats enjoy the weather on the Lake Lucerne in Sisikon, Switzerland, August 5, 2018. REUTERS/Denis Balibouse TPX IMAGES OF THE DAY 

A man walks past a graffiti that reads, "They will not be able to jail an entire populace", the day after the Catalan regional parliament declared independence from Spain in Barcelona, Spain, October 28, 2017. REUTERS/Jon Nazca 

Crosses are seen at the Hill of Crosses or "Kryziu Kalnas", near Siauliai, Lithuania August 26, 2017. REUTERS/Ints Kalnins 

Sea lions are seen at the Palomino island in Callao, Peru October 14, 2016. REUTERS/Guadalupe Pardo TPX IMAGES OF THE DAY 

People walk near an over-crowded graveyard in the rebel held al-Shaar neighbourhood of Aleppo, Syria October 6, 2016. REUTERS/Abdalrhman Ismail TPX IMAGES OF THE DAY

An overcrowded dinghy with migrants from different African countries is seen after members of the German NGO Jugend Rettet guided them towards the Iuventa vessel during a rescue operation, off the Libyan coast in the Mediterranean Sea September 21, 2016. REUTERS/Zohra Bensemra 

An overcrowded dinghy with migrants from different African countries is escorted by members of the German NGO Jugend Rettet as they approach the Iuventa vessel during a rescue operation, off the Libyan coast in the Mediterranean Sea September 21, 2016. REUTERS/Zohra Bensemra 

A migrant is transferred from a dinghy by members of the German NGO Jugend Rettet during a rescue operation, off the Libyan coast in the Mediterranean Sea September 21, 2016. REUTERS/Zohra Bensemra 

An overcrowded dinghy with migrants from different African countries is followed by members of the German NGO Jugend Rettet as they approach the Iuventa vessel during a rescue operation, off the Libyan coast in the Mediterranean Sea September 21, 2016. REUTERS/Zohra Bensemra TPX IMAGES OF THE DAY

Rescuers from Save the Children NGO start transfering migrants from Iuventa vessel to their ship after they were rescued from an overcrowded dinghy by members of the German NGO Jugend Rettet during a rescue operation, off the Libyan coast in the Mediterranean Sea September 21, 2016. REUTERS/Zohra Bensemra 

A rescue boat of the Spanish NGO Proactiva approaches an overcrowded wooden vessel with migrants from Eritrea, off the Libyan coast in Mediterranean Sea August 29, 2016. REUTERS/Giorgos Moutafis TPX IMAGES OF THE DAY

Migrants from Eritrea are seen on an overcrowded wooden vessel during a rescue operation by the Spanish NGO Proactiva, off the Libyan coast in Mediterranean Sea August 29, 2016. REUTERS/Giorgos Moutafis 

A rescue boat of the Spanish NGO Proactiva approaches an overcrowded wooden vessel with migrants from Eritrea, off the Libyan coast in Mediterranean Sea August 29, 2016. REUTERS/Giorgos Moutafis 

Migrants from Eritrea are seen onboard a rescue boat of the Spanish NGO Proactiva, off the Libyan coast in Mediterranean Sea August 29, 2016. REUTERS/Giorgos Moutafis 

Migrants from Eritrea are seen on an overcrowded wooden vessel during a rescue operation by the Spanish NGO Proactiva, off the Libyan coast in Mediterranean Sea August 29, 2016. REUTERS/Giorgos Moutafis 

Migrants from Eritrea are seen on an overcrowded wooden vessel during a rescue operation by the Spanish NGO Proactiva, off the Libyan coast in Mediterranean Sea August 29, 2016. REUTERS/Giorgos Moutafis 

A migrant is carried from an overcrowded dinghy by a member of the Spanish NGO Proactiva during a rescue operation by the Spanish NGO Proactiva, off the Libyan coast in Mediterranean Sea August 28, 2016. REUTERS/Giorgos Moutafis TPX IMAGES OF THE DAY

A dinghy overcrowded by African migrants is seen drifting off the Libyan coast in Mediterranean Sea August 20, 2016. REUTERS/Giorgos Moutafis TPX IMAGES OF THE DAY

Women wait for sterilization surgery at a hospital in Caracas, Venezuela July 27, 2016. REUTERS/Carlos Garcia Rawlins SEARCH "STERILIZATION CHILD" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES.

Women wait for sterilization surgery a hospital in Caracas, Venezuela July 27, 2016. REUTERS/Carlos Garcia Rawlins SEARCH "STERILIZATION CHILD" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY 

People sit atop an overcrowded passenger train as they travel home to celebrate Eid al-Fitr festival, which marks the end of the Muslim holy fasting month of Ramadan, at a railway station in Dhaka, Bangladesh, July 5, 2016. REUTERS/Adnan Abidi 

People try to board an overcrowded passenger train as they travel home to celebrate Eid al-Fitr festival, which marks the end of the Muslim holy fasting month of Ramadan, at a railway station in Dhaka, Bangladesh, July 5, 2016. REUTERS/Adnan Abidi 

People sit atop an overcrowded passenger train as they travel home to celebrate Eid al-Fitr festival, which marks the end of the Muslim holy fasting month of Ramadan, at a railway station in Dhaka, Bangladesh, July 5, 2016. REUTERS/Adnan Abidi 

People sit atop an overcrowded passenger train as they travel home to celebrate Eid al-Fitr festival, which marks the end of the Muslim holy fasting month of Ramadan, at a railway station in Dhaka, Bangladesh, July 5, 2016. REUTERS/Adnan Abidi 

People sit atop and stand outside on an engine of an overcrowded passenger train as they travel home to celebrate Eid al-Fitr festival, which marks the end of the Muslim holy fasting month of Ramadan, at a railway station in Dhaka, Bangladesh, July 5, 2016. REUTERS/Adnan Abidi 

People stand in the windows of an overcrowded passenger train as they travel home to celebrate Eid al-Fitr festival, which marks the end of the Muslim holy fasting month of Ramadan, at a railway station in Dhaka, Bangladesh, July 5, 2016. REUTERS/Adnan Abidi TPX IMAGES OF THE DAY 

People climb to board an overcrowded passenger train as they travel home to celebrate Eid al-Fitr festival, which marks the end of the Muslim holy fasting month of Ramadan, at a railway station in Dhaka, Bangladesh, July 5, 2016. REUTERS/Adnan Abidi 

People stand on an engine of an overcrowded passenger train as they travel home to celebrate Eid al-Fitr festival, which marks the end of the Muslim holy fasting month of Ramadan, at a railway station in Dhaka, Bangladesh, July 5, 2016. REUTERS/Adnan Abidi 

A woman requests others to pull her up on an overcrowded passenger train as they travel home to celebrate Eid al-Fitr festival, which marks the end of the Muslim holy fasting month of Ramadan, at a railway station in Dhaka, Bangladesh, July 5, 2016. REUTERS/Adnan Abidi 

A couple helps their son to climb on top of an overcrowded passenger train as they travel home to celebrate Eid al-Fitr festival, which marks the end of the Muslim holy fasting month of Ramadan, at a railway station in Dhaka, Bangladesh, July 5, 2016. REUTERS/Adnan Abidi 

A couple stands on the steps of an overcrowded passenger train as they travel home to celebrate Eid al-Fitr festival, which marks the end of the Muslim holy fasting month of Ramadan, at a railway station in Dhaka, Bangladesh, July 5, 2016. REUTERS/Adnan Abidi 

People sit atop of an overcrowded passenger train as they travel home to celebrate Eid al-Fitr festival, which marks the end of the Muslim holy fasting month of Ramadan, at a railway station in Dhaka, Bangladesh, July 5, 2016. REUTERS/Adnan Abidi 

People climb to board an overcrowded passenger train as they travel home to celebrate Eid al-Fitr festival, which marks the end of the Muslim holy fasting month of Ramadan, at a railway station in Dhaka, Bangladesh, July 5, 2016. REUTERS/Adnan Abidi TPX IMAGES OF THE DAY

People sit atop of an overcrowded passenger train as they travel home to celebrate Eid al-Fitr festival, which marks the end of the Muslim holy fasting month of Ramadan, at a railway station in Dhaka, Bangladesh, July 5, 2016. REUTERS/Adnan Abidi

A mother and daughter attend Democratic presidential candidate Hillary Clinton's speech at the Planned Parenthood Action Fund in Washington, U.S. June 10, 2016. REUTERS/Gary Cameron 

A mother and daughter attend Democratic presidential candidate Hillary Clinton's speech at the Planned Parenthood Action Fund in Washington, U.S. June 10, 2016. REUTERS/Gary Cameron 

Democratic presidential candidate Hillary Clinton addresses the Planned Parenthood Action Fund in Washington, U.S. June 10, 2016. REUTERS/Gary Cameron 

Democratic U.S. presidential candidate Hillary Clinton (R) is seen after her speech to the Planned Parenthood Action Fund in Washington, U.S. June 10, 2016. Cecile Richards, President of Planned Parenthood, is at left. REUTERS/Gary Cameron 

Democratic presidential candidate Hillary Clinton addresses the Planned Parenthood Action Fund in Washington, U.S. June 10, 2016. REUTERS/Gary Cameron 

Democratic presidential candidate Hillary Clinton addresses the Planned Parenthood Action Fund in Washington, U.S. June 10, 2016. REUTERS/Gary Cameron 

Democratic U.S. presidential candidate Hillary Clinton addresses the Planned Parenthood Action Fund in Washington, U.S. June 10, 2016. REUTERS/Gary Cameron 

Democratic U.S. presidential candidate Hillary Clinton addresses the Planned Parenthood Action Fund in Washington, U.S. June 10, 2016. REUTERS/Gary Cameron 

Democratic U.S. presidential candidate Hillary Clinton addresses the Planned Parenthood Action Fund in Washington, U.S. June 10, 2016. REUTERS/Gary Cameron 

Democratic presidential candidate Hillary Clinton addresses the Planned Parenthood Action Fund in Washington, U.S., June 10, 2016. Cecile Richards, President of Planned Parenthood, is behind Mrs. Clinton. REUTERS/Gary Cameron TPX IMAGES OF THE DAY

Democratic presidential candidate Hillary Clinton addresses the Planned Parenthood Action Fund in Washington, U.S., June 10, 2016. REUTERS/Gary Cameron TPX IMAGES OF THE DAY

Democratic U.S. presidential candidate Hillary Clinton walks to the podium to address the Planned Parenthood Action Fund in Washington, U.S., June 10, 2016. REUTERS/Gary Cameron 

A mother plays with her baby before Democratic U.S. presidential candidate Hillary Clinton addresses the Planned Parenthood Action Fund in Washington, U.S. June 10, 2016. REUTERS/Gary Cameron 

A group of women play with a baby before Democratic U.S. presidential candidate Hillary Clinton addresses the Planned Parenthood Action Fund in Washington, U.S. June 10, 2016. REUTERS/Gary Cameron 

A group of women have their picture taken before Democratic U.S. presidential candidate Hillary Clinton addresses the Planned Parenthood Action Fund in Washington, U.S. June 10, 2016. REUTERS/Gary Cameron 

A group of women have their picture taken before Democratic U.S. presidential candidate Hillary Clinton addresses the Planned Parenthood Action Fund in Washington, U.S. June 10, 2016. REUTERS/Gary Cameron 

People at the seafront Malecon watch a performance by U.S. electronic music group Major Lazer in Havana, March 6, 2016. REUTERS/Alexandre Meneghini 

Runners fill the street in front of the Tokyo Metropolitan Government Building at the start of the Tokyo Marathon 2016 in Tokyo, Japan, February 28, 2016. Some 30,000 runners participated in the tenth edition of the Tokyo Marathon, one of the six World Marathon Majors. REUTERS/Kiyoshi Ota/Pool