Quilla, an eighteen-day-old female baby pygmy hippopotamus (Choeropsis liberiensis), stands near her mother in an enclosure at the Bioparc zoological park in Doue-La-Fontaine, France, November 29, 2021. REUTERS/Stephane Mahe 

Quilla, an eighteen-day-old female baby pygmy hippopotamus (Choeropsis liberiensis), stands near her mother in an enclosure at the Bioparc zoological park in Doue-La-Fontaine, France, November 29, 2021. REUTERS/Stephane Mahe 

Quilla, an eighteen-day-old female baby pygmy hippopotamus (Choeropsis liberiensis), stands near her mother in an enclosure at the Bioparc zoological park in Doue-La-Fontaine, France, November 29, 2021. REUTERS/Stephane Mahe 

A pygmy hippo rests on a puddle while its pool (not pictured) is cleaned at the 'Buin Zoo' which is looking for sponsors to funds for food, maintenance and veterinary controls for its animals due the lockdown, during the coronavirus disease (COVID-19) outbreak, in Buin, Santiago, Chile September 9, 2020. Picture taken September 9, 2020. REUTERS/Ivan Alvarado 

A baby pygmy hippo born in captivity swims while is displayed for the first time to the public at the Buin Zoo in Santiago, Chile January 9, 2020. REUTERS/Ivan Alvarado 

A baby pygmy hippo born in captivity swims while is displayed for the first time to the public at the Buin Zoo in Santiago, Chile January 9, 2020. REUTERS/Ivan Alvarado 

A baby pygmy hippo born in captivity swims while is displayed for the first time to the public at the Buin Zoo in Santiago, Chile January 9, 2020. REUTERS/Ivan Alvarado 

A baby pygmy hippo born in captivity swims while is displayed for the first time to the public at the Buin Zoo in Santiago, Chile January 9, 2020. REUTERS/Ivan Alvarado TPX IMAGES OF THE DAY 

A month-old baby pygmy hippo is seen with his mother at his enclosure at Khao Kheow Zoo in Chonburi, Thailand November 30, 2019. REUTERS/Jorge Silva 

A month-old baby pygmy hippo is seen at his enclosure at Khao Kheow Zoo in Chonburi, Thailand November 30, 2019. REUTERS/Jorge Silva 

A month old-baby pygmy hippo is seen with his mother at his enclosure at Khao Kheow Zoo in Chonburi, Thailand November 30, 2019. REUTERS/Jorge Silva 

A month-old baby pygmy hippo is seen with his mother at his enclosure at Khao Kheow Zoo in Chonburi, Thailand November 30, 2019. REUTERS/Jorge Silva 

A month-old baby pygmy hippo is seen with his mother at his enclosure at Khao Kheow Zoo in Chonburi, Thailand November 30, 2019. REUTERS/Jorge Silva 

A month-old baby pygmy hippo is seen with his mother at his enclosure at Khao Kheow Zoo in Chonburi, Thailand November 30, 2019. REUTERS/Jorge Silva 

A month-old baby pygmy hippo is seen with his mother at his enclosure at Khao Kheow Zoo in Chonburi, Thailand November 30, 2019. REUTERS/Jorge Silva 

29-year-old Pygmy hippopotamus Kuma eats fruits and vegetables at the Pairi Daiza wildlife park, a zoo and botanical garden in Brugelette, Belgium August 2, 2019. REUTERS/Yves Herman 

29-year-old Pygmy hippopotamus Kuma eats fruits and vegetables at the Pairi Daiza wildlife park, a zoo and botanical garden in Brugelette, Belgium August 2, 2019. REUTERS/Yves Herman 

29-year-old Pygmy hippopotamus Kuma eats fruits and vegetables at the Pairi Daiza wildlife park, a zoo and botanical garden in Brugelette, Belgium August 2, 2019. REUTERS/Yves Herman 

29-year-old Pygmy hippopotamus Kuma eats fruits and vegetables at the Pairi Daiza wildlife park, a zoo and botanical garden in Brugelette, Belgium August 2, 2019. REUTERS/Yves Herman 

Children handle Pygmy Goats as they are judged at the Royal Cheshire County Show near Tabley, Britain, June 20, 2018. REUTERS/Phil Noble 

Children handle Pygmy Goats as they are judged at the Royal Cheshire County Show near Tabley, Britain, June 20, 2018. REUTERS/Phil Noble 

People protest in front of the SPD's party congress venue in Bonn, Germany, January 21, 2018. Placards read "I hold this placard since 2013, GROKO no thanks", "Revolt of the pygmies", "Stable backbone instead of setback". REUTERS/Thilo Schmuelgen 

Albina, the Singapore Zoo's 24th successful pygmy hippo birth, follows its parent in their enclosure during a media tour to showcase newborn animals at the Singapore Zoo January 11, 2018. REUTERS/Edgar Su TPX IMAGES OF THE DAY 

Albina, the Singapore Zoo's 24th successful pygmy hippo birth, feeds next to its parent in their enclosure during a media tour to showcase newborn animals at the Singapore Zoo January 11, 2018. Picture taken through glass. REUTERS/Edgar Su 

Albina, the Singapore Zoo's 24th successful pygmy hippo birth, feeds next to its parent in their enclosure during a media tour to showcase newborn animals at the Singapore Zoo January 11, 2018. Picture taken through glass. REUTERS/Edgar Su 

Albina, the Singapore Zoo's 24th successful pygmy hippo birth, feeds next to its parent in their enclosure during a media tour to showcase newborn animals at the Singapore Zoo January 11, 2018. REUTERS/Edgar Su 

Albina, the Singapore Zoo's 24th successful pygmy hippo birth, follows its parent in their enclosure during a media tour to showcase newborn animals at the Singapore Zoo January 11, 2018. REUTERS/Edgar Su 

Emilio, a pygmy hippopotamus, is sprayed with water to cool down on a hot summer day at Sofia City Zoo, Sofia, Bulgaria June 23, 2017. REUTERS/Stoyan Nenov TPX IMAGES OF THE DAY 

Taronga Zoo's yet-unnamed Pygmy Hippo calf, born on February 21, swims with her mother Kambiri as she goes on public display for the first time in Sydney, Australia, March 17, 2017. REUTERS/Jason Reed 

Taronga Zoo's yet-unnamed Pygmy Hippo calf, born on February 21, swims with her mother Kambiri as she goes on public display for the first time in Sydney, Australia, March 17, 2017. REUTERS/Jason Reed 

Taronga Zoo's yet-unnamed Pygmy Hippo calf, born on February 21, splashes into a pond as she goes on public display for the first time in Sydney, Australia, March 17, 2017. REUTERS/Jason Reed 

Taronga Zoo's yet-unnamed Pygmy Hippo calf, born on February 21, goes on public display for the first time in alongside her mother Kambiri in Sydney, Australia, March 17, 2017. REUTERS/Jason Reed 

Taronga Zoo's yet-unnamed Pygmy Hippo calf, born on February 21, swims alongside her mother Kambiri as she goes on public display for the first time in Sydney, Australia, March 17, 2017. REUTERS/Jason Reed 

Taronga Zoo's yet-unnamed Pygmy Hippo calf, born on February 21, goes on public display for the first time in alongside her mother Kambiri in Sydney, Australia, March 17, 2017. REUTERS/Jason Reed 

Taronga Zoo's yet-unnamed Pygmy Hippo calf, born on February 21, swims underwater as she goes on public display for the first time in Sydney, Australia, March 17, 2017. REUTERS/Jason Reed 

Taronga Zoo's yet-unnamed Pygmy Hippo calf, born on February 21, goes on public display for the first time in alongside her mother Kambiri in Sydney, Australia, March 17, 2017. REUTERS/Jason Reed TPX IMAGES OF THE DAY 

Nimba, a five-month-old baby female pygmy hippopotamus (Choeropsis liberiensis), swims in the enclosure at Bioparc Fuengirola in Fuengirola, near Malaga, southern Spain, February 8, 2017. REUTERS/Jon Nazca 

Nimba, a five-month-old baby female pygmy hippopotamus (Choeropsis liberiensis), plays with her mother Liberia in the enclosure at Bioparc Fuengirola in Fuengirola, near Malaga, southern Spain, February 8, 2017. REUTERS/Jon Nazca 

Nimba, a five-month-old baby female pygmy hippopotamus (Choeropsis liberiensis), tries to eat with her mother Liberia in the enclosure at Bioparc Fuengirola in Fuengirola, near Malaga, southern Spain, February 8, 2017. REUTERS/Jon Nazca 

Nimba, a five-month-old baby female pygmy hippopotamus (Choeropsis liberiensis), plays with her mother Liberia in the enclosure at Bioparc Fuengirola in Fuengirola, near Malaga, southern Spain, February 8, 2017. REUTERS/Jon Nazca 

Nimba, a five-month-old baby female pygmy hippopotamus (Choeropsis liberiensis), swims in the enclosure at Bioparc Fuengirola in Fuengirola, near Malaga, southern Spain, February 8, 2017. REUTERS/Jon Nazca 

Nimba, a five-month-old baby female pygmy hippopotamus (Choeropsis liberiensis), bites her mother Liberia in the enclosure at Bioparc Fuengirola in Fuengirola, near Malaga, southern Spain, February 8, 2017. REUTERS/Jon Nazca 

Nimba, a five-month-old baby female pygmy hippopotamus (Choeropsis liberiensis), swims in the enclosure at Bioparc Fuengirola in Fuengirola, near Malaga, southern Spain, February 8, 2017. REUTERS/Jon Nazca 

Nimba, a five-month-old baby female pygmy hippopotamus (Choeropsis liberiensis), is seen in the enclosure at Bioparc Fuengirola in Fuengirola, near Malaga, southern Spain, February 8, 2017. REUTERS/Jon Nazca 

Voyage, 40, waits for a nurse at the health centre in Bugarula village on Idjwi island in the Democratic Republic of Congo, November 24, 2016. Voyage has a wound on his finger that has become gangrenous. REUTERS/Therese Di Campo SEARCH "BAMBUTI" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Lake Kivu is seen in the Democratic Republic of Congo, November 25, 2016. REUTERS/Therese Di Campo SEARCH "BAMBUTI" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Habimana, 45, and her children walk to market to sell pottery on Idjwi island in the Democratic Republic of Congo, November 23, 2016. REUTERS/Therese Di Campo SEARCH "BAMBUTI" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

A fisherman works on Lake Kivu near Idjwi island in the Democratic Republic of Congo, November 26, 2016. REUTERS/Therese Di Campo SEARCH "BAMBUTI" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

A nurse (R), prepares to give an injection to Voyage, 40, a Pygmy man who is suffering from a wound on his finger that has turned gangrenous, at the health centre in the village of Bugarula on Idjwi island in the Democratic Republic of Congo, November 24, 2016. REUTERS/Therese Di Campo SEARCH "BAMBUTI" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Manguiste, 24, stands in a canoe on Lake Kivu just off Idjwi island in the Democratic Republic of Congo, November 26, 2016. REUTERS/Therese Di Campo SEARCH "BAMBUTI" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

A Bahavu woman and her son stand in front their house which has an Orange sign above the door in Bugarula village on Idjwi island in the Democratic Republic of Congo, November 26, 2016. REUTERS/Therese Di Campo SEARCH "BAMBUTI" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Melissa, 20, who is Bahavu, returns from market of the village of Burgarula on Idjwi island in the Democratic Republic of Congo, November 26, 2016. REUTERS/Therese Di Campo SEARCH "BAMBUTI" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY 

Bahavu children wash on the shore of Lake Kivu, on Idjwi island, in the Democratic Republic of Congo, November 22, 2016. REUTERS/Therese Di Campo SEARCH "BAMBUTI" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY 

A boy plays football, at Kagorwa Pygmy camp on Idjwi island in the Democratic Republic of Congo, November 22, 2016. REUTERS/Therese Di Campo SEARCH "BAMBUTI" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Women look for clay soil, which they use to make pottery near Kagorwa Pygmy camp on Idjwi island in the Democratic Republic of Congo, November 23, 2016. REUTERS/Therese Di Campo SEARCH "BAMBUTI" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Manguiste, 24, sleeps at home in Kagorwa Pygmy camp on Idjwi island in the Democratic Republic of Congo, November 22, 2016. REUTERS/Therese Di Campo SEARCH "BAMBUTI" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Habimana, 45, poses for a portrait at Kagorwa Pygmy camp, on Idjwi island in the Democratic Republic of Congo, November 25, 2016. REUTERS/Therese Di Campo SEARCH "BAMBUTI" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY 

A Pygmy woman, 20, shakes a pendo, a musical instrument made from a metal box filled with gravel, to calm her crying child, at Kagorwa Pygmy camp on Idjwi island in the Democratic Republic of Congo, November 22, 2016. REUTERS/Therese Di Campo SEARCH "BAMBUTI" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

A woman makes a clay pot at Kagorwa Pygmy camp on Idjwi island in the Democratic Republic of Congo, November 23, 2016. REUTERS/Therese Di Campo SEARCH "BAMBUTI" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.