Marine biologist Marina Benazic feeds Pinna nobilis, Mediterranean's largest clam on the verge of extinction, in Pula Aquarium, Pula, Croatia September 16, 2020. Picture taken September 16, 2020. REUTERS/Antonio Bronic

Healthy Pinna nobilis, Mediterranean's largest clam on the verge of extinction, are seen in Pula Aquarium, Pula, Croatia September 16, 2020. Picture taken September 16, 2020. REUTERS/Antonio Bronic

A woman looks at healthy Pinna nobilis, Mediterranean's largest clam on the verge of extinction, in Pula Aquarium, Pula, Croatia September 16, 2020. Picture taken September 16, 2020. REUTERS/Antonio Bronic

Marine biologist Marina Benazic prepares food for Pinna nobilis, Mediterranean's largest clam on the verge of extinction, in Pula Aquarium, Pula, Croatia September 16, 2020. Picture taken September 16, 2020. REUTERS/Antonio Bronic

Marine biologist Marina Benazic prepares food for Pinna nobilis, Mediterranean's largest clam on the verge of extinction, in Pula Aquarium, Pula, Croatia September 16, 2020. Picture taken September 16, 2020. REUTERS/Antonio Bronic

Marine biologist Marina Benazic inspects food for Pinna nobilis, Mediterranean's largest clam on the verge of extinction, in Pula Aquarium, Pula, Croatia September 16, 2020. Picture taken September 16, 2020. REUTERS/Antonio Bronic

Dead Pinna nobilis, Mediterranean's largest clam on the verge of extinction, are seen in Pula Aquarium, Pula, Croatia September 17, 2020. Picture taken September 17, 2020. REUTERS/Antonio Bronic

Healthy Pinna nobilis, Mediterranean's largest clam on the verge of extinction, are seen in Pula Aquarium, Pula, Croatia September 16, 2020. Picture taken September 16, 2020. REUTERS/Antonio Bronic

Dead Pinna nobilis, Mediterranean's largest clam on the verge of extinction, are seen in the Adriatic Sea near Pula, Croatia September 17, 2020. Picture taken September 17, 2020. REUTERS/Antonio Bronic

Marine biologist Marina Benazic feeds Pinna nobilis, Mediterranean's largest clam on the verge of extinction, in Pula Aquarium, Pula, Croatia September 16, 2020. Picture taken September 16, 2020. REUTERS/Antonio Bronic

Worker of Pula Aquarium, Zoran Micic, is inspecting dead Pinna nobilis, Mediterranean's largest clam on the verge of extinction, in the Adriatic Sea near Pula, Croatia September 17, 2020. Picture taken September 17, 2020. REUTERS/Antonio Bronic

Worker of Pula Aquarium, Zoran Micic, is inspecting dead Pinna nobilis, Mediterranean's largest clam on the verge of extinction, in the Adriatic Sea near Pula, Croatia September 17, 2020. Picture taken September 17, 2020. REUTERS/Antonio Bronic

Divers waves the Indonesian flags during an underwater celebration of Indonesia's 75th Independence day at Seaworld in Jakarta, Indonesia, August 17, 2020. REUTERS/Willy Kurniawan

A diver waves to visitors during an underwater celebration of Indonesia's 75th Independence day at Seaworld in Jakarta, Indonesia, August 17, 2020. REUTERS/Willy Kurniawan

Divers take part in an underwater ceremony to celebrate Indonesia's 75th Independence day at Seaworld in Jakarta, Indonesia, August 17, 2020. REUTERS/Willy Kurniawan

California State University of Long Beach Shark Lab scientists deploy baited remote underwater videos to opportunistically capture juvenile white shark "selfies". Using coloration unique to each animal's gills, pelvic fin, and tail fin the scientists can identify individual animals. Picture taken November 7, 2019.  Patrick Rex/Shark Lab/Handout via REUTERS THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. NO RESALES. NO ARCHIVES

An underwater view of an oyster farm in Brijesta, Croatia, May 10, 2020. Picture taken May 10, 2020. REUTERS/Antonio Bronic

An underwater view of an oyster farm in Brijesta, Croatia, May 10, 2020. Picture taken May 10, 2020. REUTERS/Antonio Bronic

An underwater view of an oyster farm in Brijesta, Croatia, May 10, 2020. Picture taken May 10, 2020. REUTERS/Antonio Bronic

Cars underwater in Taff Wells, South Wales, Britain, February 16, 2020. REUTERS/Rebecca Naden

A sports pavilion underwater in Taff Wells, South Wales, Britain, February 16, 2020. REUTERS/Rebecca Naden

A sports pavilion underwater in Taff Wells, South Wales, Britain, February 16, 2020. REUTERS/Rebecca Naden

A car underwater in Pontypridd, South Wales, Britain, February 16, 2020. REUTERS/Rebecca Naden

Divers perform underwater Lion-dances in an aquarium at Seaworld during Chinese Lunar New Year of the Rat celebrations in Jakarta, Indonesia, January 26, 2020. REUTERS/Willy Kurniawan

Divers perform underwater Dragon-dance in an aquarium at Seaworld during Chinese Lunar New Year of the Rat celebrations in Jakarta, Indonesia, January 26, 2020. REUTERS/Willy Kurniawan

Divers perform an underwater dragon dance ahead of Chinese Lunar New Year celebrations at an aquarium in Kuala Lumpur, Malaysia, January 17, 2020. REUTERS/Lim Huey Teng

Divers perform an underwater dragon dance ahead of Chinese Lunar New Year celebrations at an aquarium in Kuala Lumpur, Malaysia, January 17, 2020. REUTERS/Lim Huey Teng

Divers perform an underwater dragon dance ahead of Chinese Lunar New Year celebrations at an aquarium in Kuala Lumpur, Malaysia, January 17, 2020. REUTERS/Lim Huey Teng

Divers perform an underwater dragon dance ahead of Chinese Lunar New Year celebrations at an aquarium in Kuala Lumpur, Malaysia, January 17, 2020. REUTERS/Lim Huey Teng

RoboSea's Robo-Shark, a multi-joint bionic robot fish for underwater exploration, is displayed during the 2020 CES in Las Vegas, Nevada, U.S. January 8, 2020. REUTERS/Steve Marcus

Cast member Kristen Stewart poses at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Director William Eubank poses at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast member John Gallagher Jr. poses at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast member Jessica Henwick poses at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast member Jessica Henwick poses at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast member Jessica Henwick poses at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast member Kristen Stewart poses at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast member Jessica Henwick poses at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast member Jessica Henwick poses at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast member Mamoudou Athie poses at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast member Kristen Stewart poses at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast member Kristen Stewart poses at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast member Kristen Stewart poses at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast member Kristen Stewart poses at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast member Kristen Stewart poses at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast member Kristen Stewart poses at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast members (L-R) Mamoudou Athie, Jessica Henwick, Kristen Stewart and John Gallagher Jr. pose at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast member Kristen Stewart poses at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast member Kristen Stewart poses at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast members Kristen Stewart (R) and Jessica Henwick pose at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast member Kristen Stewart and director William Eubank pose at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast member Kristen Stewart and director William Eubank pose at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast members Kristen Stewart (R) and Jessica Henwick pose at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast members Kristen Stewart (R) and Jessica Henwick pose at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Cast member Kristen Stewart and director William Eubank pose at a screening for the film "Underwater" in Los Angeles, California, U.S., January 7, 2020. REUTERS/Mario Anzuoni

Southeast Asian Games - Underwater Hockey - Vermosa Sports Hub, Imus, Philippines - December 2, 2019 General view of a competitor REUTERS/Soe Zeya Tun

Southeast Asian Games - Underwater Hockey - Vermosa Sports Hub, Imus, Philippines - December 2, 2019 A fan with a flag REUTERS/Soe Zeya Tun

Southeast Asian Games - Underwater Hockey - Vermosa Sports Hub, Imus, Philippines - December 2, 2019 General view of a competitor REUTERS/Soe Zeya Tun

Southeast Asian Games - Underwater Hockey - Vermosa Sports Hub, Imus, Philippines - December 2, 2019 General view of the players during the match of Malaysia against Philippines REUTERS/Soe Zeya Tun