Frozen bracken undergrowth is backlit by morning sunlight as the cold weather continues, in Bushy Park, London, Britain, January 19, 2023. REUTERS/Toby Melville TPX IMAGES OF THE DAY 

Soccer Football - FIFA World Cup Qatar 2022 - Round of 16 - England v Senegal - Al Bayt Stadium, Al Khor, Qatar - December 4, 2022 Harry Maguire's wife Fern Hawkins and their daughter are pictured in the stands before the match REUTERS/Kai Pfaffenbach 

U.S. President Joe Biden greets pople at the Fern Hollow Bridge, in Pittsburgh, Pennsylvania, U.S. October 20, 2022. REUTERS/Leah Millis 

U.S. Secret Service agent keeps watch while U.S. President Joe Biden delivers remarks from the Fern Hollow Bridge, in Pittsburgh, Pennsylvania, U.S. October 20, 2022. REUTERS/Leah Millis 

U.S. President Joe Biden delivers remarks from the Fern Hollow Bridge, in Pittsburgh, Pennsylvania, U.S. October 20, 2022. REUTERS/Leah Millis 

U.S. President Joe Biden delivers remarks from the Fern Hollow Bridge, in Pittsburgh, Pennsylvania, U.S. October 20, 2022. REUTERS/Leah Millis 

A person photographs U.S. President Joe Biden as he leaves after delivering remarks from the Fern Hollow Bridge, in Pittsburgh, Pennsylvania, U.S. October 20, 2022. REUTERS/Leah Millis 

U.S. President Joe Biden leaves after delivering remarks from the Fern Hollow Bridge, in Pittsburgh, Pennsylvania, U.S. October 20, 2022. REUTERS/Leah Millis 

U.S. President Joe Biden delivers remarks from the Fern Hollow Bridge, in Pittsburgh, Pennsylvania, U.S. October 20, 2022. REUTERS/Leah Millis 

U.S. President Joe Biden delivers remarks from the Fern Hollow Bridge, in Pittsburgh, Pennsylvania, U.S. October 20, 2022. REUTERS/Leah Millis 

U.S. President Joe Biden greets carpenter Gregory Allen Stahl, United Brotherhood of Carpenters Member, at the Fern Hollow Bridge, in Pittsburgh, Pennsylvania, U.S. October 20, 2022. REUTERS/Leah Millis 

U.S. President Joe Biden delivers remarks from the Fern Hollow Bridge, in Pittsburgh, Pennsylvania, U.S. October 20, 2022. REUTERS/Leah Millis 

U.S. President Joe Biden delivers remarks from the Fern Hollow Bridge, in Pittsburgh, Pennsylvania, U.S. October 20, 2022. REUTERS/Leah Millis 

U.S. President Joe Biden delivers remarks from the Fern Hollow Bridge, in Pittsburgh, Pennsylvania, U.S. October 20, 2022. REUTERS/Leah Millis 

U.S. President Joe Biden delivers remarks from the Fern Hollow Bridge, in Pittsburgh, Pennsylvania, U.S. October 20, 2022. REUTERS/Leah Millis 

U.S. President Joe Biden delivers remarks from the Fern Hollow Bridge, in Pittsburgh, Pennsylvania, U.S. October 20, 2022. REUTERS/Leah Millis 

A fern grows in Richmond Park, London, Britain, April 30, 2022. REUTERS/Toby Melville 

Elephant owner Siriporn Sapmak, 23, poses while holding her gear used for social media live-streaming outside her house, at Ban Ta Klang village in Surin, Thailand April 6, 2022. "I take care of two elephants, Prakai Kaew and Bai Fern," Siriporn Sapmak said to her audience on social media. "We live-stream and sell fruit to make money to buy food for our elephants, because we haven't had a job for over three years. Lots of things have changed and we have to survive and find a way to feed our elephants." REUTERS/Jorge Silva SEARCH "SILVA SURIN ELEPHANTS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Britain's Prime Minister Boris Johnson and Kenya's President Uhuru Kenyatta plant a Fern leaf beech tree after meeting at Chequers, the official country residence of the Prime Minister, near Aylesbury in Buckinghamshire, Britain, July 28, 2021. REUTERS/Peter Cziborra 

Britain's Prime Minister Boris Johnson and Kenya's President Uhuru Kenyatta plant a Fern leaf beech tree after meeting at Chequers, the official country residence of the Prime Minister, near Aylesbury in Buckinghamshire, Britain, July 28, 2021. REUTERS/Peter Cziborra 

Britain's Prime Minister Boris Johnson and Kenya's President Uhuru Kenyatta plant a Fern leaf beech tree after meeting at Chequers, the official country residence of the Prime Minister, near Aylesbury in Buckinghamshire, Britain, July 28, 2021. REUTERS/Peter Cziborra 

Britain's Prime Minister Boris Johnson and Kenya's President Uhuru Kenyatta plant a Fern leaf beech tree after meeting at Chequers, the official country residence of the Prime Minister, near Aylesbury in Buckinghamshire, Britain, July 28, 2021. REUTERS/Peter Cziborra 

Chinese artist Ai Weiwei poses for a portrait with a fern leaf during a presentation of his new exhibition "Intertwine" in Serralves Museum of Contemporary Art in Porto, Portugal, July 22, 2021. REUTERS/Violeta Santos Moura 

Chinese artist Ai Weiwei poses for a portrait with a fern leaf during a presentation of his new exhibition "Intertwine" in Serralves Museum of Contemporary Art in Porto, Portugal, July 22, 2021. REUTERS/Violeta Santos Moura 

Ferns are seen growing in the auditorium as the RoughCast Theatre Company perform Shakespeare's "The Tempest" at "Thorington Theatre in the Woods", a newly completed natural woodland amphitheatre, at Lindy O'Hare's farm estate, near Southwold, Britain, June 26, 2021. Picture taken June 26, 2021. REUTERS/Toby Melville 

Hung Hsin-Chieh, a research assistant at Dr. Cecilia Koo Botanic Conservation Center, takes care of a fern that he collected from a forest, in a nursery at Dr. Cecilia Koo Botanic Conservation Center in Pingtung, Taiwan, July 24, 2020. REUTERS/Ann Wang SEARCH "WANG RARE PLANTS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Fern Street Circus performers Idrissa Bangoura and his 8 year-old daughter Mamadama entertain students and parents as they welcome them to a drive through food distribution at Clark Middle School as part of a summer meals program during the global outbreak of the coronavirus disease (COVID-19) in San Diego, California, U.S., June 24, 2020. REUTERS/Mike Blake 

Fern Street Circus performers Idrissa Bangoura and his 8 year-old daughter Mamadama entertain students and parents as they welcome them to a drive through food distribution at Clark Middle School as part of a summer meals program during the global outbreak of the coronavirus disease (COVID-19)in San Diego, California, U.S., June 24, 2020. REUTERS/Mike Blake 

Alain Dollete is dressed as actor Zach Galifianakis with dogs Kiri and Jasper to recreate the set of series "Between Two Ferns" at the Tompkins Square Halloween Dog Parade in Manhattan, New York City, U.S., October 20, 2019. REUTERS/Andrew Kelly 

Soccer Football - Premier League - Leicester City v Chelsea - King Power Stadium, Leicester, Britain - May 12, 2019 Leicester City's Harry Maguire, fiancee Fern Hawkins and daughter Lillie Saint Maguire after the match REUTERS/Eddie Keogh EDITORIAL USE ONLY. No use with unauthorized audio, video, data, fixture lists, club/league logos or "live" services. Online in-match use limited to 75 images, no video emulation. No use in betting, games or single club/league/player publications. Please contact your account representative for further details. 

Fern Randall, aged 12, from Wakefield, joins EU supporters, calling on the government to give Britons a vote on the final Brexit deal, during the 'People's Vote' march in central London, Britain March 23, 2019. REUTERS/Kevin Coombs 

A woman holds a fern during a vigil for the victims of the mosque attacks during an ecumenical celebration in Christchurch, New Zealand, March 21, 2019. REUTERS/Jorge Silva TPX IMAGES OF THE DAY 

A woman holds a fern during a vigil for the victims of the mosque attacks during an ecumenical celebration in Christchurch, New Zealand, March 21, 2019. REUTERS/Jorge Silva TPX IMAGES OF THE DAY 

A woman holds a fern during an ecumenical vigil for the victims of the mosque attacks in Christchurch, New Zealand, March 21, 2019. REUTERS/Jorge Silva 

People hold ferns during a vigil for the victims of the mosque attacks during an ecumenical celebration in Christchurch, New Zealand, March 21, 2019. REUTERS/Jorge Silva 

People hold ferns during a vigil for the victims of the mosque attacks during an ecumenical celebration in Christchurch, New Zealand, March 21, 2019. REUTERS/Jorge Silva 

A woman holds a fern during a vigil for the victims of the mosque attacks during an ecumenical celebration in Christchurch, New Zealand, March 21, 2019. REUTERS/Jorge Silva 

A woman holds a fern during a vigil for the victims of the mosque attacks during an ecumenical celebration in Christchurch, New Zealand, March 21, 2019. REUTERS/Jorge Silva 

People hold ferns during a vigil for the victims of the mosque attacks during an ecumenical celebration in Christchurch, New Zealand, March 21, 2019. REUTERS/Jorge Silva 

A man holds a fern during a vigil for the victims of the mosque attacks during an ecumenical celebration in Christchurch, New Zealand, March 21, 2019. REUTERS/Jorge Silva 

A woman holds a fern during a vigil for the victims of the mosque attacks during an ecumenical celebration in Christchurch, New Zealand, March 21, 2019. REUTERS/Jorge Silva 

24th Critics Choice Awards – Arrivals – Santa Monica, California, U.S., January 13, 2019 - Cory Fern. REUTERS/Danny Moloshok 

24th Critics Choice Awards – Arrivals – Santa Monica, California, U.S., January 13, 2019 - Cory Fern. REUTERS/Danny Moloshok 

24th Critics Choice Awards - Arrivals - Santa Monica, California, U.S., January 13, 2019 - Cody Fern. REUTERS/Danny Moloshok 

76th Golden Globe Awards - Arrivals - Beverly Hills, California, U.S., January 6, 2019 - Cody Fern. REUTERS/Mike Blake 

76th Golden Globe Awards - Arrivals - Beverly Hills, California, U.S., January 6, 2019 - Cody Fern. REUTERS/Mike Blake 

76th Golden Globe Awards - Arrivals - Beverly Hills, California, U.S., January 6, 2019 - Cody Fern. REUTERS/Mike Blake 

Soccer Football - World Cup - Third Place Play Off - Belgium v England - Saint Petersburg Stadium, Saint Petersburg, Russia - July 14, 2018 Fern Hawkins, partner of England's Harry Maguire, poses for a photo after the match REUTERS/Lee Smith 

Volcanic gasses rise from the ground in the Leilani Estates subdivision during ongoing eruptions of the Kilauea Volcano in Hawaii, U.S., May 13, 2018. REUTERS/Terray Sylvester 

Hockey - Gold Coast 2018 Commonwealth Games - New Zealand v Australia - Gold Coast Hockey Centre - Gold Coast, Australia - April 14, 2018. New Zealand's Prime Minister Jacinda Ardern cheers next to a spectator holding a "Silver Fern" New Zealand flag. REUTERS/David Gray 

Triathlon - Gold Coast 2018 Commonwealth Games - Mixed Team Relay Final - Southport Broadwater Parklands - Gold Coast, Australia - April 7, 2018. New Zealand team members pose with their national flag and a silver fern flag. REUTERS/David Gray 

A firefighter watches a forest fire near the village of Fato, central Portugal, June 18, 2017. REUTERS/Rafael Marchante 

Plants are placed by a red carpet inside the Great Hall of the People where sessions of the National People's Congress (NPC) and the Chinese People's Political Consultative Conference (CPPCC) are taking place, in Beijing, China March 2, 2016. REUTERS/Damir Sagolj SEARCH "SAGOLJ COLOURS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.? 

A fern leaf lies on a bough in a protected area of Bialowieza forest, the last primeval forest in Europe, near Bialowieza village, Poland, May 30, 2016. REUTERS/Kacper Pempel/File Photo 

A fern leaf lies on a bough in a protected area of Bialowieza forest, the last primeval forest in Europe, near Bialowieza village, Poland May 30, 2016. REUTERS/Kacper Pempel SEARCH "BIALOWIEZA PEMPEL" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES 

Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall prepare to lay fern leaves on the Tomb of the Unknown Warrior during their visit to the National War Memorial in Wellington, New Zealand, November 4, 2015. Prince Charles and Camilla, Duchess of Cornwall began a 12-day tour of Australia and New Zealand on Wednesday. REUTERS/Mark Mitchell/Pool 

Prince Charles, Prince of Wales lays a fern leaf on the Tomb of the Unknown Warrior alongside Camilla, Duchess of Cornwall during their visit to the National War Memorial in Wellington, New Zealand, November 4, 2015. Prince Charles and Camilla, Duchess of Cornwall began a 12-day tour of Australia and New Zealand on Wednesday. REUTERS/Mark Mitchell/Pool

Prince Charles (L) , Prince of Wales and New Zealand Prime Minister John Key lay fern leaves on the Tomb of the Unknown Warrior during their visit to the National War Memorial in Wellington, New Zealand, November 4, 2015. Prince Charles and Camilla, Duchess of Cornwall began a 12-day tour of Australia and New Zealand on Wednesday. REUTERS/Anthony Phelps 

Prince Charles (L-R) , Prince of Wales, Camilla, Duchess of Cornwall, Branagh Key and New Zealand Prime Minister John Key pay their respects after laying fern leaves on the Tomb of the Unknown Warrior during their visit to the National War Memorial in Wellington, New Zealand, November 4, 2015. Prince Charles and Camilla, Duchess of Cornwall began a 12-day tour of Australia and New Zealand on Wednesday. REUTERS/Anthony Phelps 

Prince Charles, Prince of Wales lays a fern leaf on the Tomb of the Unknown Warrior alongside Camilla, Duchess of Cornwall during their visit to the National War Memorial in Wellington, New Zealand, November 4, 2015. Prince Charles and Camilla, Duchess of Cornwall began a 12-day tour of Australia and New Zealand on Wednesday. REUTERS/Anthony Phelps