White rhinoceros (Ceratotherium simum) are seen inside an enclosure at the Paris Zoological Park in the Bois de Vincennes before the reopening following the outbreak of the coronavirus disease (COVID-19) in France, May 12, 2021. REUTERS/Benoit Tessier

The Royal Burgers' Zoo welcomed a newly-born white rhinoceros in Arnhem, Netherlands April 6, 2021. REUTERS/Piroschka van de Wouw

The Royal Burgers' Zoo welcomed a newly-born white rhinoceros in Arnhem, Netherlands April 6, 2021. REUTERS/Piroschka van de Wouw

The Royal Burgers' Zoo welcomed a newly-born white rhinoceros in Arnhem, Netherlands April 6, 2021. REUTERS/Piroschka van de Wouw

The Royal Burgers' Zoo welcomed a newly-born white rhinoceros in Arnhem, Netherlands April 6, 2021. REUTERS/Piroschka van de Wouw

The Royal Burgers' Zoo welcomed a newly-born white rhinoceros in Arnhem, Netherlands April 6, 2021. REUTERS/Piroschka van de Wouw

The Royal Burgers' Zoo welcomed a newly-born white rhinoceros in Arnhem, Netherlands April 6, 2021. REUTERS/Piroschka van de Wouw

The Royal Burgers' Zoo welcomed a newly-born white rhinoceros in Arnhem, Netherlands April 6, 2021. REUTERS/Piroschka van de Wouw

The Royal Burgers' Zoo welcomed a newly-born white rhinoceros in Arnhem, Netherlands April 6, 2021. REUTERS/Piroschka van de Wouw

The Royal Burgers' Zoo welcomed a newly-born white rhinoceros in Arnhem, Netherlands April 6, 2021. REUTERS/Piroschka van de Wouw

The Royal Burgers' Zoo welcomed a newly-born white rhinoceros in Arnhem, Netherlands April 6, 2021. REUTERS/Piroschka van de Wouw

The Royal Burgers' Zoo welcomed a newly-born white rhinoceros in Arnhem, Netherlands April 6, 2021. REUTERS/Piroschka van de Wouw

The Royal Burgers' Zoo welcomed a newly-born white rhinoceros in Arnhem, Netherlands April 6, 2021. REUTERS/Piroschka van de Wouw TPX IMAGES OF THE DAY

The Royal Burgers' Zoo welcomed a newly-born white rhinoceros in Arnhem, Netherlands April 6, 2021. REUTERS/Piroschka van de Wouw

A researcher points at a microscope screen showing Sumatran Rhinoceros cells at a laboratory in International Islamic University, in Kuantan, Malaysia June 30, 2020. Picture taken June 30, 2020. REUTERS/Lim Huey Teng

Malaysian Professor Muhammad Lokman Md Isa holds a flask containing Sumatran Rhinoceros cells at a laboratory in International Islamic University, in Kuantan, Malaysia June 30, 2020. Picture taken June 30, 2020. REUTERS/Lim Huey Teng

A researcher prepares Sumatran Rhinoceros cells for research at a laboratory in International Islamic University, in Kuantan, Malaysia June 30, 2020. Picture taken June 30, 2020. REUTERS/Lim Huey Teng

Malaysian Professor Muhammad Lokman Md Isa inspects Sumatran Rhinoceros cells at a laboratory in International Islamic University, in Kuantan, Malaysia June 30, 2020. Picture taken June 30, 2020. REUTERS/Lim Huey Teng

White rhinoceros are pictured next to a visitor's car at the Knowsley Safari Park, as it re-opens following the outbreak of the coronavirus disease (COVID-19) in Knowsley, Britain June 15, 2020. REUTERS/Jason Cairnduff

Howard the Southern White Rhinoceros is seen at the Cruise the Zoo drive-through program at the Phoenix Zoo after coronavirus disease (COVID-19) restrictions were lifted in Phoenix, Arizona, U.S. May 18, 2020. REUTERS/Caitlin O'Hara

Southern white rhinos are seen at the Ruma National park, Nyanza province, western Kenya, January 31, 2020. Picture taken January 31, 2020. REUTERS/Baz Ratner

Baby rhinoceros 'Willi', born January 8th, is seen with his mother 'Shakina' in their enclosure at Dortmund Zoo in Dortmund, Germany January 22, 2020. REUTERS/Leon Kuegeler

Baby rhinoceros 'Willi', born January 8th, is seen in his enclosure at Dortmund Zoo in Dortmund, Germany January 22, 2020. REUTERS/Leon Kuegeler

Baby rhinoceros 'Willi', born January 8th, is seen with his mother 'Shakina' in their enclosure at Dortmund Zoo in Dortmund, Germany January 22, 2020. REUTERS/Leon Kuegeler

Baby rhinoceros 'Willi', born January 8th, is seen in his enclosure at Dortmund Zoo in Dortmund, Germany January 22, 2020. REUTERS/Leon Kuegeler

Baby rhinoceros 'Willi', born January 8th, is seen in his enclosure at Dortmund Zoo in Dortmund, Germany January 22, 2020. REUTERS/Leon Kuegeler

Baby rhinoceros 'Willi', born January 8th, is seen with his mother 'Shakina' in their enclosure at Dortmund Zoo in Dortmund, Germany January 22, 2020. REUTERS/Leon Kuegeler

Baby rhinoceros 'Willi', born January 8th, is seen with his mother 'Shakina' in their enclosure at Dortmund Zoo in Dortmund, Germany January 22, 2020. REUTERS/Leon Kuegeler

A visitor looks at the painting "Rhinoceros" by German Renaissance painter Albrecht Duerer during a press preview of the exhibition "Albrecht Duerer" at the Albertina museum in Vienna, September 19, 2019. REUTERS/Leonhard Foeger

Nkosi, a critically endangered Eastern Black Rhino is hosed down by its keeper at Folly Farm and Zoo, Begelly, Pembrokeshire, Wales, Britain. July 25, 2019. REUTERS/Rebecca Naden

Nkosi, a critically endangered Eastern Black Rhino is hosed down by its keeper at Folly Farm and Zoo, Begelly, Pembrokeshire, Wales, Britain. July 25, 2019. REUTERS/Rebecca Naden

Workers offload a black rhinoceros that was shipped to Rwanda from Zoo Safari Park Dvur Kralove in the Czech Republic, from the plane at the airport in Kigali, Rwanda, June 24, 2019. REUTERS/Jean Bizimana

Workers offload a black rhinoceros that was shipped to Rwanda from Zoo Safari Park Dvur Kralove in the Czech Republic, from a cage at the airport in Kigali, Rwanda, June 24, 2019. REUTERS/Jean Bizimana

Workers offload a black rhinoceros that was shipped to Rwanda from Zoo Safari Park Dvur Kralove in the Czech Republic, from a cage at the Akagera National Park, in eastern Rwanda June 24, 2019. REUTERS/Jean Bizimana

A black rhinoceros, that was shipped to Rwanda from Zoo Safari Park Dvur Kralove in the Czech Republic, walks inside it's pen at the Akagera National Park, in eastern Rwanda, June 24, 2019. REUTERS/Jean Bizimana

A black rhinoceros, that was shipped to Rwanda from Zoo Safari Park Dvur Kralove in the Czech Republic, walks inside it's pen at the Akagera National Park, in eastern Rwanda, June 24, 2019. REUTERS/Jean Bizimana

A black rhinoceros, that was shipped to Rwanda from Zoo Safari Park Dvur Kralove in the Czech Republic, walks inside it's pen at the Akagera National Park, in eastern Rwanda, June 24, 2019. REUTERS/Jean Bizimana

A black rhinoceros, that was shipped to Rwanda from Zoo Safari Park Dvur Kralove in the Czech Republic, walks inside it's pen at the Akagera National Park, in eastern Rwanda, June 24, 2019. REUTERS/Jean Bizimana

A black rhinoceros, that was shipped to Rwanda from Zoo Safari Park Dvur Kralove in the Czech Republic, is seen inside its pen at the Akagera National Park, in eastern Rwanda, June 24, 2019. REUTERS/Jean Bizimana TPX IMAGES OF THE DAY

A black rhinoceros, that was shipped to Rwanda from Zoo Safari Park Dvur Kralove in the Czech Republic, is seen inside it's pen at the Akagera National Park, in eastern Rwanda, June 24, 2019. REUTERS/Jean Bizimana

A black rhinoceros, that was shipped to Rwanda from Zoo Safari Park Dvur Kralove in the Czech Republic, is seen inside it's pen at the Akagera National Park, in eastern Rwanda, June 24, 2019. REUTERS/Jean Bizimana

An employee rests next to rhinoceros sculptures during lunch break at Huawei Songshan Lake New Campus in Dongguan, Guangdong province, China May 31, 2019. Picture taken May 31, 2019. REUTERS/Jason Lee

An employee stands next to rhinoceros sculptures during lunch break at Huawei Songshan Lake New Campus in Dongguan, Guangdong province, China May 31, 2019. Picture taken May 31, 2019. REUTERS/Jason Lee

Pigeons fly nearby as a white rhinoceros, named Karen Peles, stands next to her second calf, a 3-week old female, at the Safari Zoo, in Ramat Gan, Israel January 21, 2019. REUTERS/Corinna Kern TPX IMAGES OF THE DAY

A white rhinoceros, named Karen Peles, walks together with her second calf, a 3-week old female, at the Safari Zoo, in Ramat Gan, Israel January 21, 2019. REUTERS/Corinna Kern

A white rhinoceros, named Karen Peles, walks together with her second calf, a 3-week old female, at the Safari Zoo, in Ramat Gan, Israel January 21, 2019. REUTERS/Corinna Kern

A white rhinoceros, named Karen Peles, walks together with her second calf, a 3-week old female, at the Safari Zoo, in Ramat Gan, Israel January 21, 2019. REUTERS/Corinna Kern

A white rhinoceros, named Karen Peles, walks together with her second calf, a 3-week old female, at the Safari Zoo, in Ramat Gan, Israel January 21, 2019. REUTERS/Corinna Kern

A white rhinoceros, named Karen Peles, walks together with her second calf, a 3-week old female, at the Safari Zoo, in Ramat Gan, Israel January 21, 2019. REUTERS/Corinna Kern

Pigeons fly nearby as a white rhinoceros, named Karen Peles, stands next to her second calf, a 3-week old female, at the Safari Zoo, in Ramat Gan, Israel January 21, 2019. REUTERS/Corinna Kern

A white rhinoceros, named Karen Peles, walks together with her second calf, a 3-week old female, at the Safari Zoo, in Ramat Gan, Israel January 21, 2019. REUTERS/Corinna Kern

Marion Moreau, Head of Sigfox Foundation, poses during an interview with Reuters at French tech company Sigfox offices in Paris, France, December 7, 2018. Sigfox Foundation develops small and affordable trackers for rhinoceroses that uses 'the internet of things' to transmit information in order to prevent poaching in game reserves. Picture taken December 7, 2018. REUTERS/Philippe Wojazer

Marion Moreau, Head of Sigfox Foundation, poses during an interview with Reuters at French tech company Sigfox offices in Paris, France, December 7, 2018. Sigfox Foundation develops small and affordable trackers for rhinoceroses that uses 'the internet of things' to transmit information in order to prevent poaching in game reserves. Picture taken December 7, 2018. REUTERS/Philippe Wojazer

A prototyped tracking device, developped for the project "Now Rhinos Speak", is seen on an interactive map used by rangers to monitor the rhinoceroses, at French tech company Sigfox offices in Paris, France, December 7, 2018. The Sigfox Foundation develops small and affordable trackers for rhinoceroses that uses 'the internet of things' to transmit information in order to prevent poaching in game reserves. Picture taken December 7, 2018. REUTERS/Philippe Wojazer

Marion Moreau, Head of Sigfox Foundation, poses during an interview with Reuters at French tech company Sigfox offices in Paris, France, December 7, 2018. Sigfox Foundation develops small and affordable trackers for rhinoceroses that uses 'the internet of things' to transmit information in order to prevent poaching in game reserves. Picture taken December 7, 2018. REUTERS/Philippe Wojazer

Marion Moreau, Head of Sigfox Foundation, poses during an interview with Reuters at French tech company Sigfox offices in Paris, France, December 7, 2018. Sigfox Foundation develops small and affordable trackers for rhinoceroses that uses 'the internet of things' to transmit information in order to prevent poaching in game reserves. Picture taken December 7, 2018. REUTERS/Philippe Wojazer

Marion Moreau, Head of Sigfox Foundation, poses during an interview with Reuters at French tech company Sigfox offices in Paris, France, December 7, 2018. Sigfox Foundation develops small and affordable trackers for rhinoceroses that uses 'the internet of things' to transmit information in order to prevent poaching in game reserves. Picture taken December 7, 2018. REUTERS/Philippe Wojazer

Marion Moreau, Head of Sigfox Foundation, poses during an interview with Reuters at French tech company Sigfox offices in Paris, France, December 7, 2018. Sigfox Foundation develops small and affordable trackers for rhinoceroses that uses 'the internet of things' to transmit information in order to prevent poaching in game reserves. Picture taken December 7, 2018. REUTERS/Philippe Wojazer

Marion Moreau, Head of Sigfox Foundation, and engineer Pauline Pham look at an interactive map used by rangers to monitor the rhinoceroses equiped with their tracking device, at French tech company Sigfox offices in Paris, France, December 7, 2018. The Sigfox Foundation develops small and affordable trackers for rhinoceroses that uses 'the internet of things' to transmit information in order to prevent poaching in game reserves. Picture taken December 7, 2018. REUTERS/Philippe Wojazer

A prototype tracking device, developped for the project "Now Rhinos Speak", is seen on an interactive map used by rangers to monitor the rhinoceroses, at French tech company Sigfox offices in Paris, France, December 7, 2018. The Sigfox Foundation develops small and affordable trackers for rhinoceroses that uses 'the internet of things' to transmit information in order to prevent poaching in game reserves. Picture taken December 7, 2018. REUTERS/Philippe Wojazer