Wildebeests are seen within the Kimana Sanctuary, part of a crucial wildlife corridor that links the Amboseli National Park to the Chyulu Hills and Tsavo protected areas, within the Amboseli ecosystem in Kimana, Kenya February 8, 2021. Picture taken February 8, 2021. REUTERS/Thomas Mukoya

Wildebeests are seen within the Kimana Sanctuary, part of a crucial wildlife corridor that links the Amboseli National Park to the Chyulu Hills and Tsavo protected areas, within the Amboseli ecosystem in Kimana, Kenya February 8, 2021. Picture taken February 8, 2021. REUTERS/Thomas Mukoya

Elephants are seen within the Kimana Sanctuary, part of a crucial wildlife corridor that links the Amboseli National Park to the Chyulu Hills and Tsavo protected areas, within the Amboseli ecosystem in Kimana, Kenya February 8, 2021. Picture taken February 8, 2021. REUTERS/Thomas Mukoya

Elephants are seen within the Kimana Sanctuary, part of a crucial wildlife corridor that links the Amboseli National Park to the Chyulu Hills and Tsavo protected areas, within the Amboseli ecosystem in Kimana, Kenya February 8, 2021. Picture taken February 8, 2021. REUTERS/Thomas Mukoya

An elephant walks within the Kimana Sanctuary, part of a crucial wildlife corridor that links the Amboseli National Park to the Chyulu Hills and Tsavo protected areas, within the Amboseli ecosystem in Kimana, Kenya January 31, 2021. Picture taken January 31, 2021. REUTERS/Nazanine Moshiri

A motorcycle taxi rider carries a passenger past a road laced with an electric fence within the Kimana Sanctuary, part of a crucial wildlife corridor that links the Amboseli National Park to the Chyulu Hills and Tsavo protected areas, within the Amboseli ecosystem in Kimana, Kenya February 8, 2021. Picture taken February 8, 2021. REUTERS/Thomas Mukoya

Elephants are seen within the Kimana Sanctuary, part of a crucial wildlife corridor that links the Amboseli National Park to the Chyulu Hills and Tsavo protected areas, within the Amboseli ecosystem in Kimana, Kenya February 8, 2021. Picture taken February 8, 2021. REUTERS/Thomas Mukoya

A giraffe crosses a road laced with an electric fence within the Kimana Sanctuary, part of a crucial wildlife corridor that links the Amboseli National Park to the Chyulu Hills and Tsavo protected areas, within the Amboseli ecosystem in Kimana, Kenya February 8, 2021. Picture taken February 8, 2021. REUTERS/Thomas Mukoya TPX IMAGES OF THE DAY

Elephants are seen within the Kimana Sanctuary, part of a crucial wildlife corridor that links the Amboseli National Park to the Chyulu Hills and Tsavo protected areas, within the Amboseli ecosystem in Kimana, Kenya February 8, 2021. Picture taken February 8, 2021. REUTERS/Thomas Mukoya

Elephants are seen within the Kimana Sanctuary, part of a crucial wildlife corridor that links the Amboseli National Park to the Chyulu Hills and Tsavo protected areas, within the Amboseli ecosystem in Kimana, Kenya February 8, 2021. Picture taken February 8, 2021. REUTERS/Thomas Mukoya

An elephant walks within the Kimana Sanctuary, part of a crucial wildlife corridor that links the Amboseli National Park to the Chyulu Hills and Tsavo protected areas, within the Amboseli ecosystem in Kimana, Kenya February 8, 2021. Picture taken February 8, 2021. REUTERS/Thomas Mukoya

A worker paints a corridor of a short-stay facility Connect@Changi, a complex of hotel rooms and meeting halls near the airport which will welcome business "bubble" travellers from March, as part of the city-state's effort to resume international meetings and conferences amid the coronavirus disease (COVID-19) outbreak, in Singapore February 22, 2021. REUTERS/Edgar Su

People wait in a corridor during an outage in Mexico's electricity network, in Ciudad Juarez, Mexico February 15, 2021. REUTERS/Jose Luis Gonzalez

People wait in a corridor during an outage in Mexico's electricity network, in Ciudad Juarez, Mexico February 15, 2021. REUTERS/Jose Luis Gonzalez

Ambulance crew members stand in the hotel corridor following a strong earthquake in Iwaki, Fukushima prefecture, Japan February 13, 2021. REUTERS/Issei Kato

Senator Susan Collins (R-ME) walks through the Ohio Clock Corridor to greet National Guard troops before arriving for the third day of senate impeachment hearings against former U.S. president Donald Trump in Washington, U.S., February 11, 2021. REUTERS/Tom Brenner

U.S. Senate Minority Leader Mitch McConnell (R-KY) walks through the Ohio Clock Corridor as he arrives for the third day of senate impeachment hearings against former U.S. president Donald Trump in Washington, U.S., February 11, 2021. REUTERS/Tom Brenner

U.S. President Joe Biden, accompanied by Vice President Kamala Harris, Secretary of Defense Lloyd Austin, and Joint Chiefs of Staff Chairman Gen. Mark Milley, tours the African Americans in Defense of our Nations Corridor at the Pentagon in Arlington, Virginia, U.S., February 10, 2021. Alex Brandon/Pool via REUTERS

U.S. President Joe Biden tours the African Americans in Defense of our Nations Corridor at the Pentagon in Arlington, Virginia, U.S., February 10, 2021. Alex Brandon/Pool via REUTERS

U.S. President Joe Biden, accompanied by Vice President Kamala Harris, Secretary of Defense Lloyd Austin, and Joint Chiefs of Staff Chairman Gen. Mark Milley, tour the African Americans in Defense of our Nations Corridor at the Pentagon in Arlington, Virginia, U.S., February 10, 2021. Alex Brandon/Pool via REUTERS

U.S. President Joe Biden tours the African Americans in Defense of our Nations Corridor at the Pentagon in Arlington, Virginia, U.S., February 10, 2021. Alex Brandon/Pool via REUTERS

Senator Raphael Warnock (D-GA) stands in The Senate Reception Room corridor during the second day of former U.S. President Donald Trump's second impeachment trial in Washington, U.S., February 10, 2021. Brandon Bell/Pool via REUTERS

Senator Raphael Warnock (D-GA) stands in The Senate Reception Room corridor during the second day of former U.S. President Donald Trump's second impeachment trial in Washington, U.S., February 10, 2021. Brandon Bell/Pool via REUTERS

A pedestrian walks in an underpass painted to look like a prison corridor in central Kyiv, Ukraine February 2, 2021. Georgian artist David Kukhalashvili created the art project "Underground Despair", dedicated to 98 Crimean residents who were arrested after the annexation of the peninsula by Russia. REUTERS/Gleb Garanich

A pedestrian walks in an underpass painted to look like a prison corridor in central Kyiv, Ukraine February 2, 2021. Georgian artist David Kukhalashvili created the art project "Underground Despair", dedicated to 98 Crimean residents who were arrested after the annexation of the peninsula by Russia. REUTERS/Gleb Garanich

A pedestrian is seen in an underpass painted like a prison corridor in central Kyiv, Ukraine February 2, 2021. Georgian artist David Kukhalashvili created an art project "Underground Despair", dedicated to 98 Crimean residents who were arrested after the annexation of the peninsula by Russia. REUTERS/Gleb Garanich

A pedestrian walks in an underpass painted to look like a prison corridor in central Kyiv, Ukraine February 2, 2021. Georgian artist David Kukhalashvili created the art project "Underground Despair", dedicated to 98 Crimean residents who were arrested after the annexation of the peninsula by Russia. REUTERS/Gleb Garanich

A corridor in a negative pressure ward is pictured during a media trip, at the North Lantau Hospital Hong Kong Infection Control Center, in Hong Kong, China February 2, 2021. REUTERS/Tyrone Siu

An elderly woman sits in the corridor of a hospital where people receive doses of Sputnik V (Gam-COVID-Vac) vaccine against the coronavirus disease (COVID-19), in the village of Donskoye in Stavropol Region, Russia January 27, 2021. REUTERS/Eduard Korniyenko

Students wearing protective face masks walk in the corridor, amid the outbreak of the coronavirus disease (COVID-19)at a school in Baghdad, Iraq January 19, 2021. Picture taken January 19, 2021. REUTERS/Thaier al-Sudani

A man brushes his teeth as children play around the corridor of a house he shares with other families as the spread of the coronavirus disease (COVID-19) continues, in Medina neighbourhood, Dakar, Senegal January 18, 2021. REUTERS/Zohra Bensemra

People walk along a corridor at the headquarters of the International Atomic Energy Agency (IAEA) in Vienna, Austria, December 16, 2020. REUTERS/Lisi Niesner u000d u000d

Pedestrians walk past a restaurant along the 14th Street Corridor amid the coronavirus disease (COVID-19) outbreak, in Washington, U.S., December 4, 2020. REUTERS/Tom Brenner

Restaurant patrons sit inside plastic tents while being served outside of the Lupo Verde restaurant along the 14th Street Corridor amid the coronavirus disease (COVID-19) outbreak, in Washington, U.S., December 4, 2020. REUTERS/Tom Brenner

Restaurant patrons sit inside plastic tents while being served outside of the Lupo Verde restaurant along the 14th Street Corridor amid the coronavirus disease (COVID-19) outbreak, in Washington, U.S., December 4, 2020. REUTERS/Tom Brenner

Restaurant patrons sit inside plastic tents while being served outside of the Lupo Verde restaurant along the 14th Street Corridor amid the coronavirus disease (COVID-19) outbreak, in Washington, U.S., December 4, 2020. REUTERS/Tom Brenner

Restaurant patrons sit inside plastic tents while being served outside of the Lupo Verde restaurant along the 14th Street Corridor amid the coronavirus disease (COVID-19) outbreak, in Washington, U.S., December 4, 2020. REUTERS/Tom Brenner

A vacant dinner table sits against a storefront along the 14th Street Corridor amid the coronavirus disease (COVID-19) outbreak, in Washington, U.S., December 4, 2020. REUTERS/Tom Brenner

People gather in a corridor during the vaccination against the coronavirus disease (COVID-19) at a clinic in the town of Domodedovo near Moscow, Russia December 3, 2020. A sign reads: "Vaccination against COVID-19". REUTERS/Maxim Shemetov

A possible hybrid between Coeligena bonapartei and Coeligena helianthea hummingbird sits on a branch in The Paramuno corridor on Monserrate hill in Bogota, Colombia November 25, 2020. Picture taken November 25, 2020. REUTERS/Luisa Gonzalez

People with cameras take photos of hummingbirds in The Paramuno corridor on Monserrate hill in Bogota, Colombia November 25, 2020. Picture taken November 25, 2020. REUTERS/Luisa Gonzalez

A woman wearing a face mask due to the outbreak of the coronavirus disease (COVID-19), look through binoculars at The Paramuno corridor on Monserrate hill in Bogota, Colombia November 25, 2020. Picture taken November 25, 2020. REUTERS/Luisa Gonzalez

A Glowing Puffleg hummingbird lands on a plastic feeder with sugar water in The Paramuno corridor on Monserrate hill in Bogota, Colombia November 20, 2020. Picture taken November 20, 2020. REUTERS/Luisa Gonzalez

A ensifera ensifera or Sword-billed hummingbird feeds on a plastic feeder with sugar water in The Paramuno corridor on Monserrate hill in Bogota, Colombia November 25, 2020. Picture taken November 25, 2020. REUTERS/Luisa Gonzalez

A Blue-throated Starfrontlet hummingbird sits on a branch in The Paramuno corridor on Monserrate hill in Bogota, Colombia November 25, 2020. Picture taken November 25, 2020. REUTERS/Luisa Gonzalez

A Glowing Puffleg hummingbird sits on a branch in The Paramuno corridor on Monserrate hill in Bogota, Colombia November 25, 2020. Picture taken November 25, 2020. REUTERS/Luisa Gonzalez

A Blue-throated Starfrontlet hummingbird flies to a plastic feeder with sugar water in The Paramuno corridor on Monserrate hill in Bogota, Colombia November 25, 2020. Picture taken November 25, 2020. REUTERS/Luisa Gonzalez

A Glowing Puffleg hummingbird rest on a plastic feeder with sugar water in The Paramuno corridor on Monserrate hill in Bogota, Colombia November 25, 2020. Picture taken November 25, 2020. REUTERS/Luisa Gonzalez

A female Coeligena helianthea hummingbird flies up to a flower in The Paramuno corridor on Monserrate hill in Bogota, Colombia November 25, 2020. Picture taken November 25, 2020. REUTERS/Luisa Gonzalez TPX IMAGES OF THE DAY

An ensifera ensifera or Sword-billed hummingbird sits on a branch in The Paramuno corridor on Monserrate hill in Bogota, Colombia November 20, 2020. Picture taken November 20, 2020. REUTERS/Luisa Gonzalez

A Sparkling Violetear hummingbird sits on a branch in The Paramuno corridor on Monserrate hill in Bogota, Colombia November 20, 2020. Picture taken November 20, 2020. REUTERS/Luisa Gonzalez

Cira 3, a remote-controlled robot that runs tests on suspected coronavirus disease (COVID-19) patients to limit the human exposure to the virus is seen in a corridor of the hospital, amid a second wave of infections in Tanta, Egypt, November 18, 2020. Picture taken November 18, 2020. REUTERS/Mohamed Abd El Ghany

Cira 3, a remote-controlled robot that runs tests on suspected coronavirus disease (COVID-19) patients to limit the human exposure to the virus is seen next to healthcare workers in a corridor of the hospital, amid a second wave of infections in Tanta, Egypt, November 18, 2020. Picture taken November 18, 2020. REUTERS/Mohamed Abd El Ghany

Cira 3, a remote-controlled robot that runs tests on suspected coronavirus disease (COVID-19) patients to limit the human exposure to the virus is seen next to a healthcare worker in a corridor of the hospital, amid a second wave of infections in Tanta, Egypt, November 18, 2020. Picture taken November 18, 2020. REUTERS/Mohamed Abd El Ghany

Cira 3, a remote-controlled robot that runs tests on suspected coronavirus disease (COVID-19) patients to limit the human exposure to the virus is seen next to a healthcare worker in a corridor of the hospital, amid a second wave of infections in Tanta, Egypt, November 18, 2020. Picture taken November 18, 2020. REUTERS/Mohamed Abd El Ghany

A doctor walks along a corridor while entering a hospital for patients infected with the coronavirus disease (COVID-19) in Kyiv, Ukraine November 25, 2020. REUTERS/Gleb Garanich

Patients and a medical specialist are seen in the corridor of the Vologda City Hospital Number 1, where patients suffering from the coronavirus disease (COVID-19) are treated, in Vologda, Russia November 24, 2020. REUTERS/Anton Vaganov

A medical specialist wearing protective gear walks through the corridor at the Vologda City Hospital Number 1, where patients suffering from the coronavirus disease (COVID-19) are treated, in Vologda, Russia November 24, 2020. REUTERS/Anton Vaganov

A medical specialist wearing protective gear is seen in the corridor of the Vologda City Hospital Number 1, where patients suffering from the coronavirus disease (COVID-19) are treated, in Vologda, Russia November 24, 2020. REUTERS/Anton Vaganov

A medical specialist wearing protective gear is seen in the corridor of the Vologda City Hospital Number 1, where patients suffering from the coronavirus disease (COVID-19) are treated, in Vologda, Russia November 24, 2020. REUTERS/Anton Vaganov