Vanessa Castle, a member of the Olympic Cougar Project, looks for Lilu, a wild cougar, using a tracking device that detects radio waves near Port Angeles, Washington, U.S., December 13, 2021. "As an indigenous person, we are taught that we have to walk in two worlds, one of our traditional sense and one of the modern day sense," said Castle, a Lower Elwha Klallam tribal member who works for the project. "I think it changes the way these scientists think about these animals."?? REUTERS/Stephanie Keith SEARCH "KEITH WASHINGTON COUGARS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Lynsey Koopman and Jayson Furusawa take wedding vows over a two-way radio in a parking lot following the resumption of marriage services for couples whose nuptials were postponed during the outbreak of the coronavirus disease (COVID-19) in Anaheim, California, U.S., April 17, 2020. REUTERS/Mike Blake 

David Isaak and Pamala Blake leave after taking their wedding vows over a two-way radio in a parking lot when marriage services resumed for couples whose nuptials were postponed during the outbreak of the coronavirus disease (COVID-19) in Anaheim, California, U.S., April 17, 2020. REUTERS/Mike Blake 

David Isaak and Pamala Blake giggle while trying to kiss with masks on after taking wedding vows over a two-way radio in a parking lot following the resumption of marriage services for couples whose nuptials were postponed during the outbreak of the coronavirus disease (COVID-19) in Anaheim, California, U.S., April 17, 2020. REUTERS/Mike Blake TPX IMAGES OF THE DAY 

Lynsey Koopman and Jayson Furusawa kiss with masks on after taking wedding vows over a two-way radio in a parking lot following the resumption of marriage services for couples whose nuptials were postponed during the outbreak of the coronavirus disease (COVID-19) in Anaheim, California, U.S., April 17, 2020. REUTERS/Mike Blake 

Lynsey Koopman and Jayson Furusawa kiss with masks on after taking wedding vows over a two-way radio in a parking lot following the resumption of marriage services for couples whose nuptials were postponed during the outbreak of the coronavirus disease (COVID-19) in Anaheim, California, U.S., April 17, 2020. REUTERS/Mike Blake 

Lynsey Koopman and Jayson Furusawa kiss with masks on after taking wedding vows over a two-way radio in a parking lot following the resumption of marriage services for couples whose nuptials were postponed during the outbreak of the coronavirus disease (COVID-19) in Anaheim, California, U.S., April 17, 2020. REUTERS/Mike Blake 

Rodger Andrei Onate and Noelle Danielle Francisco take their wedding vows over a two-way radio as marriage services resumed for couples whose nuptials were postponed by the pandemic in Orange County during the outbreak of the coronavirus disease (COVID-19) in Anaheim, California, U.S., April 17, 2020. REUTERS/Mike Blake 

David Isaak and Pamala Blake take their wedding vows over a two-way radio in a parking lot after marriage services resumed for couples whose nuptials were postponed during the outbreak of the coronavirus disease (COVID-19) in Anaheim, California, U.S., April 17, 2020. REUTERS/Mike Blake 

Rodger Andrei Onate and Noelle Danielle Francisco kiss through their masks after taking their wedding vows over a two-way radio in a parking lot after marriage services resumed for couples whose nuptials were postponed during the outbreak of the coronavirus disease (COVID-19) in Anaheim, California, U.S., April 17, 2020. REUTERS/Mike Blake 

Rodger Andrei Onate and Noelle Danielle Francisco celebrate to friends on social media after taking their wedding vows over a two-way radio in a parking lot when marriage services resumed for couples whose nuptials were postponed during the outbreak of the coronavirus disease (COVID-19) in Anaheim, California, U.S., April 17, 2020. REUTERS/Mike Blake 

Rodger Andrei Onate and Noelle Danielle Francisco celebrate to friends on social media after taking their wedding vows over a two-way radio in a parking lot when marriage services resumed for couples whose nuptials were postponed during the outbreak of the coronavirus disease (COVID-19) in Anaheim, California, U.S., April 17, 2020. REUTERS/Mike Blake 

Rodger Andrei Onate and Noelle Danielle Francisco show their ID before taking their wedding vows over a two-way radio as marriage services resumed for couples whose nuptials were postponed during the outbreak of the coronavirus disease (COVID-19) in Anaheim, California, U.S., April 17, 2020. REUTERS/Mike Blake 

Rodger Andrei Onate and Noelle Danielle Francisco take their wedding vows over a two-way radio as marriage services resumed for couples whose nuptials were postponed during the outbreak of the coronavirus disease (COVID-19) in Anaheim, California, U.S., April 17, 2020. REUTERS/Mike Blake 

A young couple poses for a picture after taking their wedding vows over a two-way radio in a parking lot after marriage services resumed for couples whose nuptials were postponed during the outbreak of the coronavirus disease (COVID-19) in Anaheim, California, U.S., April 17, 2020. REUTERS/Mike Blake 

A volunteer listens to a two-way radio at an access control point in the PyeongChang 2018 Winter Olympics Kwandong Hockey Centre in Gangneung, South Korea, February 14, 2018. REUTERS/Brian Snyder 

A Chinese fisherman talks on a two way radio while aboard a Chinese fishing vessel at the disputed Scarborough Shoal April 6, 2017. Picture taken April 6, 2017 REUTERS/Erik De Castro 

A Chinese fisherman talks on a two way radio while aboard a Chinese fishing vessel at the disputed Scarborough Shoal April 6, 2017. Picture taken April 6, 2017 REUTERS/Erik De Castro 

Fighters from Libyan forces allied with the U.N.-backed government take position as smoke rises during a battle with Islamic State militants in Sirte, Libya September 22, 2016. REUTERS/Ismail Zitouny 

A fighter from Libyan forces allied with the U.N.-backed government moves through the neighborhood number three in Sirte to go into a front line fighting position with Islamic State militants, Libya September 22, 2016. REUTERS/Ismail Zitouny

A female Kurdish fighter from the People's Protection Units (YPG) carries a walkie-talkie as she stands in the Ghwairan neighborhood of Hasaka, Syria, August 22, 2016. REUTERS/Rodi Said 

A woman runs holding a walkie-talkie towards a damaged site after an airstrike on the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria May 31, 2016. REUTERS/Khalil Ashawi 

Motorloa SL1600 two way radio walkie-talkies. REUTERS/Kevin Coombs 

A Syria Democratic Forces leader (R) uses a walkie talkie and a tablet to communicate with the U.S. alliance operation room on the outskirts of al-Shadadi town, Hasaka countryside, Syria February 19, 2016. REUTERS/Rodi Said TPX IMAGES OF THE DAY

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. A fireman calls for reinforcements to extinguish a burning car set ablaze by masked protesters during clashes following protests in a 24-hour general strike by worker's unions against planned pension reforms in central Athens, Greece, February 4, 2016. REUTERS/Yannis Behrakis 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. A fireman tries to extinguish a burning car set ablaze by masked protesters during clashes following protests in a 24-hour general strike by worker's unions against planned pension reforms in central Athens, Greece, February 4, 2016. REUTERS/Yannis Behrakis 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. A fireman calls for reinforcements to extinguish a burning car set ablaze by masked protesters during clashes following protests in a 24-hour general strike by worker's unions against planned pension reforms in central Athens, Greece, February 4, 2016. REUTERS/Yannis Behrakis 

EDITORIAL USE ONLY - NO COMMERCIAL OR BOOK SALES. A fireman calls for reinforcements to extinguish a burning car set ablaze by masked protesters during clashes following protests in a 24-hour general strike by worker's unions against planned pension reforms in central Athens, Greece, February 4, 2016. REUTERS/Yannis Behrakis 

An occupier uses a radio near a gas storage facility at the Malheur National Wildlife Refuge near Burns, Oregon, January 5, 2016. Saturday's takeover of the Malheur National Wildlife Refuge outside the town of Burns, Oregon, marked the latest protest over federal management of public land in the West, long seen by conservatives in the region as an intrusion on individual rights. REUTERS/Jim Urquhart 

FBI and police investigators examine evidence at the scene of the investigation around the area of the SUV vehicle where two suspects were shot by police following a mass shooting in San Bernardino, California December 3, 2015. Authorities on Thursday were working to determine why Syed Rizwan Farook 28, and Tashfeen Malik, 27, opened fire at a holiday party of his co-workers in Southern California, killing 14 people and wounding 17 in an attack that appeared to have been planned. REUTERS/Mike Blake 

A U.S. Marine from the 3rd Marine Expeditionary Brigade talks on a two-way radio atop an amphibious assault vehicle during assault exercises with Philippine marine troops in joint drills aimed at enhancing cooperation between the allies at a Philippine Naval base San Antonio, Zambales October 9, 2015. REUTERS/Erik De Castro 

A U.S. soldier talks on a two-way radio as Philippine marine troops take up positions during assault exercises in joint drills aimed at enhancing cooperation between the allies at a Philippine Naval base San Antonio, Zambales October 9, 2015. REUTERS/Erik De Castro 

An Egyptian police officer uses a walkie-talkie as Mexican embassy members stand outside Dar Al Fouad Hospital, where injured tourists who were mistakenly targeted in a military operation "chasing terrorist elements" are recovering, as Claudia Ruiz Massieu, Mexico's Minister of Foreign Affairs, came to visit them in Cairo, Egypt, September 16, 2015. Mexico's foreign minister said she would meet Egyptian President Abdel Fattah al-Sisi in Cairo on Wednesday and demand thorough investigation of a mistaken army attack that killed eight Mexicans in Egypt's western desert. Mexican Foreign Minister Claudia Ruiz Massieu travelled on Tuesday to Cairo to bring the survivors and remains of the victims back to Mexico. REUTERS/Asmaa Waguih 

A member of Libya's Navy talks to his colleagues through a two-way radio, during a patrol off Tripoli, Libya August 7, 2015. REUTERS/Ismail Zitouny 

People watch as a motorcade with U.S. Secretary of State John Kerry passes, in Cairo August 1, 2015. REUTERS/Brendan Smialowski/Pool 

A traffic officer watches as a motorcade with U.S. Secretary of State John Kerry passes, in Cairo August 1, 2015. REUTERS/Brendan Smialowski/Pool 

A Free Syrian Army fighter talks on a walkie-talkie near a rocket launcher during what they said was preparations for an operation to strike at forces loyal to Syria's president Bashar Al-Assad located in Daraa, July 27, 2015. Picture take July 27, 2015. REUTERS/Alaa Al-Faqir

French and Chadian peacekeepers talk at the Minusma peacekeeping base in Kidal, Mali, July 22, 2015. REUTERS/Adama Diarra 

Professional hunter, Tavi Fragoso (R), speaks on a two-way radio as he is followed by Adri Kitshoff, CEO of PHASA (Professional hunters association of South Africa), as they hunt for game at the Iwamanzi Game Reserve in Koster, in the North West Province, June 6, 2015. Africa's big game hunting industry helps protect endangered species, according to its advocates. Opponents say it threatens wildlife. Now a mooted change in regulations in the United States could affect the number of foreigners who come to Africa to hunt big game, damaging the industry and possibly hurting wildlife. Picture taken June 6, 2015. REUTERS/Siphiwe Sibeko

A Memphis police officer listens on his two-way radio as music fans gather on Beale Street for the start of a procession for the late B.B, King in Memphis, Tennessee May 27, 2015. A musical tribute and procession for the Blues legend were scheduled Wednesday before his remains are moved to their final resting place and funeral in Indianola, Mississippi later this week. REUTERS/Mike Blake

An arson investigator talks on a two-way radio inside a gutted slipper factory in Valenzuela, Metro Manila in the Philippines May 14, 2015. A fire at a factory making rubber slippers killed 31 workers in the Philippine capital on Wednesday, and dozens were missing and feared dead, officials said. REUTERS/Erik De Castro TPX IMAGES OF THE DAY

A keeper carries a 12 week old Sumatran tiger cub in a net during a routine health check in its enclosure at Chester Zoo in Chester northern England March 27 , 2015. The cub, one of 3 born at the zoo, was sexed, vaccinated and micro-chipped. REUTERS/Phil Noble 

A two-way radio set and a cartridge box of the U.S. military which were used during the Vietnam War are displayed for sale at an old items market in Hanoi March 14, 2015. Postwar generations in communist-run Vietnam are proud of their heritage, schooled in the same ideology as their parents, but are increasingly seduced by the tokens of capitalism - smartphones, couture and flashy motorbikes. Still, the wounds of war have not entirely healed and collector Lai Dung says it's important that future generations don't forget the war that killed several million Vietnamese. Picture taken on March 14, 2015. REUTERS/Kham

A member of the Kurdish traffic police directs traffic in the Kurdish city of Afrin, in Aleppo's countryside March 18, 2015. REUTERS/Mahmoud Hebbo (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT) 

A woman carries a walkie-talkie as Lebanon's Hezbollah leader Sayyed Hassan Nasrallah appears on a screen to speak at an event to commemorate the deaths of six Hezbollah fighters and an Iranian general killed by an Israeli air strike in Syria on January 18, in Beirut's southern suburbs, January 30, 2015. Nasrallah said on Friday his group did not want war with Israel but was ready for one and had the right to respond to Israeli "aggression" in any time and place. REUTERS/Khalil Hassan (LEBANON - Tags: POLITICS CIVIL UNREST CONFLICT) 

Umm Mohamad, a masters graduate and commander of the all-female Mother Aisha battalion, speaks on a walkie-talkie in front of a Free Syrian Army police station in Aleppo January 3, 2015. This battalion, controlled by the Free Syrian Army, provides aid and security in addition to being a full military unit. The women who make up this force not only operate as fighters on the Old Aleppo frontline, but are also in charge of two field hospitals for injured fighters and a police station for women detainees. The text on the wall reads in Arabic, "Revolutionary Military Police". Picture taken January 3, 2015. REUTERS/Abdalrhman Ismail (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT) 

Members of Philippine Air Force Mobile Disaster Response Unit listen on their two-way radios to control air traffic for military planes delivering relief goods for typhoon Hagupit victims in Borongan city, Eastern Samar in central Philippines December 9, 2014. REUTERS/Erik De Castro (PHILIPPINES - Tags: DISASTER ENVIRONMENT SOCIETY) 

A 1960's era Dick Tracy wrist radio is seen in District Heights, Maryland September 8, 2014. With the expected release this week of the Apple Watch, which would be the company's first new product since 2010, Tracy's two-way wrist radio from the 1940's could be seen by some as a predecessor to today's smartwatch. Tracy wrist radio courtesy of the National Law Enforcement Museum. REUTERS/Gary Cameron (UNITED STATES - Tags: SCIENCE TECHNOLOGY BUSINESS) 

A 1960's era Dick Tracy wrist radio is seen in District Heights, Maryland September 8, 2014. With the expected release this week of the Apple Watch, which would be the company's first new product since 2010, Tracy's two-way wrist radio from the 1940's could be seen by some as a predecessor to today's smartwatch. Tracy wrist radio courtesy of the National Law Enforcement Museum. REUTERS/Gary Cameron (UNITED STATES - Tags: SCIENCE TECHNOLOGY BUSINESS) 

A 1960's era Dick Tracy wrist radio is seen in District Heights, Maryland September 8, 2014. With the expected release this week of the Apple Watch, which would be the company's first new product since 2010, Tracy's two-way wrist radio from the 1940's could be seen by some as a predecessor to today's smartwatch. Tracy wrist radio courtesy of the National Law Enforcement Museum. REUTERS/Gary Cameron (UNITED STATES - Tags: SCIENCE TECHNOLOGY BUSINESS TPX IMAGES OF THE DAY) 

A 1960's era Dick Tracy wrist radio is seen in District Heights, Maryland September 8, 2014. With the expected release this week of the Apple Watch, which would be the company's first new product since 2010, Tracy's two-way wrist radio from the 1940's could be seen by some as a predecessor to today's smartwatch. Tracy wrist radio courtesy of the National Law Enforcement Museum. REUTERS/Gary Cameron (UNITED STATES - Tags: SCIENCE TECHNOLOGY BUSINESS) 

A 1960's era Dick Tracy wrist radio is seen in District Heights, Maryland September 8, 2014. With the expected release this week of the Apple Watch, which would be the company's first new product since 2010, Tracy's two-way wrist radio from the 1940's could be seen by some as a predecessor to today's smartwatch. Tracy wrist radio courtesy of the National Law Enforcement Museum. REUTERS/Gary Cameron (UNITED STATES - Tags: SCIENCE TECHNOLOGY BUSINESS) 

Ali Badran, a 14-year-old Syrian, uses a walkie-talkie at an observation post to locate the positions of forces loyal to Syria's President Bashar al-Assad and monitor their movements in Jabal al-Zawiya in the Idlib countryside September 7, 2014. Badran quit school two years ago to become an observer after his father taught him the relevant skills. Picture taken September 7, 2014. REUTERS/Khalil Ashawi (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT TPX IMAGES OF THE DAY) 

A member of Philippine marines of 12th Marines Regiment talks on a two-way radio near his unit's weapons during the Cooperation Afloat Readiness and Training (CARAT) Philippines 2014, a U.S.-Philippines military exercise, on a beach facing South China sea, at San Antonio, Zambales north of Manila June 30, 2014. REUTERS/Erik De Castro (PHILIPPINES - Tags: POLITICS MILITARY) 

An Islamist Syrian rebel group Jabhat al-Nusra fighter talks on a walkie-talkie while carrying his weapon on Al-Khazan frontline of Khan Sheikhoun, northern Idlib province May 17, 2014. REUTERS/Hamid Khatib (SYRIA - Tags: CIVIL UNREST MILITARY POLITICS CONFLICT) 

A Search and Rescue member communicates on his walkie talkie inside a truck as Mount Sinabung volcano spews ash at Berastepu village in Karo district, Indonesia's North Sumatra province, January 8, 2014. About 20,000 villagers have been evacuated since authorities raised the alert status for Sinabung to the highest level in November 2013, local media reported on Monday. REUTERS/Beawiharta (INDONESIA - Tags: DISASTER ENVIRONMENT TPX IMAGES OF THE DAY) 

Members of the media record a harbour seal wearing a satellite linked transmitter making its way into the waters of Howe Sound after its release in Porteau Cove, British Columbia November 20, 2013. The seal is one of two which had received months of care at the Vancouver Aquarium Marine Mammal Rescue Centre after being rescued from the wild. Wearing the transmitters will help track their movements after their release. REUTERS/Andy Clark (CANADA - Tags: SOCIETY ANIMALS) 

A female member of the Kurdish People's Protection Units (YPG) holds a walkie talkie as she stands along a street in the west of the city of Ras al-Ain, after capturing it from Islamist rebels November 5, 2013. Redur Xelil, spokesman for the armed wing of the Syrian Kurdish Democratic Union Party (PYD), said Kurdish militias had seized the city of Ras al-Ain and all its surrounding villages. Syrian Kurdish fighters have captured more territory from Islamist rebels in northeastern Syria, a Kurdish militant group said on Monday, tightening their grip on an area where they have been setting up autonomous rule. Picture taken November 5, 2013. REUTERS/Stringer (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT) 

A Palestinian militant drinks juice during an anti-Israeli rally organized by Islamic Jihad movement in Rafah in the southern Gaza Strip October 24, 2013. REUTERS/Suhaib Salem (GAZA - Tags: POLITICS CIVIL UNREST) 

International Team captain Nick Price of Zimbabwe carries a two-way radio during the second practice round for the 2013 Presidents Cup golf tournament at Muirfield Village Golf Club in Dublin, Ohio October 2, 2013. REUTERS/Jeff Haynes (UNITED STATES - Tags: SPORT GOLF)