A buffalo calf grazes near camping rubbish at Lantau Island in Hong Kong, China October 23, 2020. Picture taken October 23, 2020. REUTERS/Lam Yik

A dairy calf is seen inside a calf hutch on Derrydale Farm, an organic dairy farm in Belle Plaine, Minnesota, U.S., October 24, 2020. Picture taken October 24, 2020. REUTERS/Bing Guan

Organic dairy farmer Meg Stuedemann prepares to feed young cattle inside calf hutches on Derrydale Farm in Belle Plaine, Minnesota, U.S., October 24, 2020. Picture taken October 24, 2020. REUTERS/Bing Guan

Organic dairy farmer Meg Stuedemann tends to Horatio, an undersized calf, inside the Derrydale Farm milking parlor in Belle Plaine, Minnesota, U.S., October 24, 2020. Picture taken October 24, 2020. REUTERS/Bing Guan

A dairy calf is seen inside a calf hutch on Derrydale Farm, an organic dairy farm in Belle Plaine, Minnesota, U.S., October 24, 2020. Picture taken October 24, 2020. REUTERS/Bing Guan

Maybelle Sloan, 59, who is from Navajo Nation, gives a bottle to her calf at her home in the Bodaway Chapter in the Navajo Nation in Cedar Ridge, Arizona, U.S. September 18, 2020. REUTERS/Stephanie Keith SEARCH "NAVAJO KEITH" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Atanasio, a white rhino calf, stands next to his mother Hanna 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

An African elephant calf, which was born at Africam Safari zoo as part of its breeding programme, is seen with its mother at their enclosure, in Valsequillo, Mexico August 12, 2020. REUTERS/Imelda Medina

An African elephant calf, which was born at Africam Safari zoo as part of its breeding programme, is touched by its mother's trunk at their enclosure, in Valsequillo, Mexico August 12, 2020. REUTERS/Imelda Medina

An African elephant calf, which was born at Africam Safari zoo as part of its breeding programme, is seen with its mother at their enclosure, in Valsequillo, Mexico August 12, 2020. REUTERS/Imelda Medina

An African elephant calf, which was born at Africam Safari zoo as part of its breeding programme, is seen with its mother at their enclosure, in Valsequillo, Mexico August 12, 2020. REUTERS/Imelda Medina

An African elephant calf, which was born at Africam Safari zoo as part of its breeding programme, is seen with its mother at their enclosure, in Valsequillo, Mexico August 12, 2020. REUTERS/Imelda Medina

An African elephant calf, which was born at Africam Safari zoo as part of its breeding programme, is seen with its mother at their enclosure, in Valsequillo, Mexico August 12, 2020. REUTERS/Imelda Medina

An African elephant calf, which was born at Africam Safari zoo as part of its breeding programme, is seen with its mother at their enclosure, in Valsequillo, Mexico August 12, 2020. REUTERS/Imelda Medina

An African elephant calf, which was born at Africam Safari zoo as part of its breeding programme, is seen with its mother at their enclosure, in Valsequillo, Mexico August 12, 2020. REUTERS/Imelda Medina

An Elephant calf is seen at the Amboseli National Park, Kenya, August 11, 2020. REUTERS/Baz Ratner

An Elephant calf is seen at the Amboseli National Park, Kenya, August 11, 2020. REUTERS/Baz Ratner

Palestinians unload a calf from a trailer as prepare to slaughter it during the Muslim holiday of Eid al-Adha, in the northern Gaza Strip July 31, 2020. REUTERS/Mohammed Salem

A Palestinian butcher prepares to slaughter a calf during the Muslim holiday of Eid al-Adha, in the northern Gaza Strip July 31, 2020. REUTERS/Mohammed Salem

A Palestinian boy rides on a trailer carrying a calf before it is slaughtered by butchers during the Muslim holiday of Eid al-Adha, in the northern Gaza Strip July 31, 2020. REUTERS/Mohammed Salem

A calf is seen at a farm ahead of the Muslim festival of sacrifice Eid al-Adha, amid the coronavirus disease (COVID-19) crisis near Ramallah in the Israeli-occupied West Bank July 28, 2020. Picture taken July 28, 2020. REUTERS/Mohamad Torokman

Atanasio, a ten-day-old white rhino calf, stands next to his mother Hanna, as the first white rhino born in captivity in Latin America, amid the outbreak of the coronavirus disease (COVID-19), at Buin Zoo in Santiago, Chile July 15, 2020. REUTERS/Pablo Sanhueza

A zoo worker watches Atanasio, a ten-day-old white rhino calf and his mother Hanna, as the first white rhino born in captivity in Latin America, amid the outbreak of the coronavirus disease (COVID-19), at Buin Zoo in Santiago, Chile July 15, 2020. REUTERS/Pablo Sanhueza

Atanasio, a ten-day-old white rhino calf, sticks his head through a barrier, as the first white rhino born in captivity in Latin America, amid the outbreak of the coronavirus disease (COVID-19), at Buin Zoo in Santiago, Chile July 15, 2020. REUTERS/Pablo Sanhueza

Atanasio, a ten-day-old white rhino calf, is seen next to his mother Hanna, as the first white rhino born in captivity in Latin America, amid the outbreak of the coronavirus disease (COVID-19), at Buin Zoo in Santiago, Chile July 15, 2020. REUTERS/Pablo Sanhueza

Atanasio, a ten-day-old white rhino calf, stands next to his mother Hanna, as the first white rhino born in captivity in Latin America, amid the outbreak of the coronavirus disease (COVID-19), at Buin Zoo in Santiago, Chile July 15, 2020. REUTERS/Pablo Sanhueza TPX IMAGES OF THE DAY

Atanasio, a ten-day-old white rhino calf, stands next to his mother Hanna, as the first white rhino born in captivity in Latin America, amid the outbreak of the coronavirus disease (COVID-19), at Buin Zoo in Santiago, Chile July 15, 2020. REUTERS/Pablo Sanhueza

A southern white rhino and her calf are seen inside the Nairobi National Park with the Nairobi skyline in the background, in Nairobi, Kenya June 15, 2020. Picture taken June 15, 2020. REUTERS/Baz Ratner

White rhino Tanda and its two-month-old female calf Ushindi are seen at the Lewa Savanne enclosure at Zoo Zurich, as the coronavirus disease (COVID-19) outbreak continues, in Zurich, Switzerland July 9, 2020. REUTERS/Arnd Wiegmann

White rhino Tanda and its two-month-old female calf Ushindi are seen at the Lewa Savanne enclosure at Zoo Zurich, as the coronavirus disease (COVID-19) outbreak continues, in Zurich, Switzerland July 9, 2020. REUTERS/Arnd Wiegmann

White rhino Tanda and its two-month-old female calf Ushindi are seen at the Lewa Savanne enclosure at Zoo Zurich, as the coronavirus disease (COVID-19) outbreak continues, in Zurich, Switzerland July 9, 2020. REUTERS/Arnd Wiegmann

White rhino Tanda and its two-month-old female calf Ushindi are seen at the Lewa Savanne enclosure at Zoo Zurich, as the coronavirus disease (COVID-19) outbreak continues, in Zurich, Switzerland July 9, 2020. REUTERS/Arnd Wiegmann

Zebras stand beside white rhino Tanda and its two-month-old female calf Ushindi at the Lewa Savanne enclosure at Zoo Zurich, as the coronavirus disease (COVID-19) outbreak continues, in Zurich, Switzerland July 9, 2020. REUTERS/Arnd Wiegmann

Zebras stand beside two-month-old white rhino calf Ushindi at the Lewa Savanne enclosure at Zoo Zurich, as the coronavirus disease (COVID-19) outbreak continues, in Zurich, Switzerland July 9, 2020. REUTERS/Arnd Wiegmann

White rhino Tanda and its two-month-old female calf Ushindi are seen at the Lewa Savanne enclosure at Zoo Zurich, as the coronavirus disease (COVID-19) outbreak continues, in Zurich, Switzerland July 9, 2020. REUTERS/Arnd Wiegmann

Visitors watch White rhino Tanda and its two-month-old female calf Ushindi at the Lewa Savanne enclosure at Zoo Zurich, as the coronavirus disease (COVID-19) outbreak continues, in Zurich, Switzerland July 9, 2020. REUTERS/Arnd Wiegmann

White rhino Tanda and its two-month-old female calf Ushindi are seen at the Lewa Savanne enclosure at Zoo Zurich, as the coronavirus disease (COVID-19) outbreak continues, in Zurich, Switzerland July 9, 2020. REUTERS/Arnd Wiegmann

White rhino Tanda and its two-month-old female calf Ushindi are seen at the Lewa Savanne enclosure at Zoo Zurich, as the coronavirus disease (COVID-19) outbreak continues, in Zurich, Switzerland July 9, 2020. REUTERS/Arnd Wiegmann TPX IMAGES OF THE DAY

A southern white rhino and her calf are seen inside Nairobi National Park in Kenya, June 15, 2020. REUTERS/Baz Ratner

A southern white rhino and her calf are seen inside the Nairobi National Park with the Nairobi skyline in the background, in Kenya, June 15, 2020. REUTERS/Baz Ratner

A newly born female Asian elephant calf (L) stands next to its one month-old sister in their enclosure at the Prague Zoo in Prague, Czech Republic, May 13, 2020. REUTERS/David W Cerny

A newly born female Asian elephant calf (R) walks next to its one month-old sister in their enclosure at the Prague Zoo in Prague, Czech Republic, May 13, 2020. REUTERS/David W Cerny TPX IMAGES OF THE DAY

A newly born female Asian elephant calf (R) walks next to its one month-old sister in their enclosure at the Prague Zoo in Prague, Czech Republic, May 13, 2020. REUTERS/David W Cerny

A newly born female Asian elephant calf (C) walks next to its one month-old sister in their enclosure at the Prague Zoo in Prague, Czech Republic, May 13, 2020. REUTERS/David W Cerny

A newly born female Asian elephant calf (L) stands next to its one month-old sister in their enclosure at the Prague Zoo in Prague, Czech Republic, May 13, 2020. REUTERS/David W Cerny

A newly born female Asian elephant calf walks next to its one month-old sister in their enclosure at the Prague Zoo in Prague, Czech Republic, May 13, 2020. REUTERS/David W Cerny

A newly born female Asian elephant calf (C) stands next to its one month-old sister in their enclosure at the Prague Zoo in Prague, Czech Republic, May 13, 2020. REUTERS/David W Cerny

A newly born female Asian elephant calf (C) walks next to its one month-old sister in their enclosure at the Prague Zoo in Prague, Czech Republic, May 13, 2020. REUTERS/David W Cerny

A newly born female Asian elephant calf walks next to its one month-old sister in their enclosure at the Prague Zoo in Prague, Czech Republic, May 13, 2020. REUTERS/David W Cerny

A newly born female Asian elephant calf (R) plays with its one month-old sister in their enclosure at the Prague Zoo in Prague, Czech Republic, May 13, 2020. REUTERS/David W Cerny

A newly born female Asian elephant calf (L) plays with its one month-old sister in their enclosure at the Prague Zoo in Prague, Czech Republic, May 13, 2020. REUTERS/David W Cerny

A newly born female Asian elephant calf (L) walks with its one month-old sister in their enclosure at the Prague Zoo in Prague, Czech Republic, May 13, 2020. REUTERS/David W Cerny

A newly born female Asian elephant calf (R) sits down next to its one month-old sister in their enclosure at the Prague Zoo in Prague, Czech Republic, May 13, 2020. REUTERS/David W Cerny

A four-month-old pet camel calf stands with its mother as their necks are tied with a rope, on Mother's Day, as the spread of the coronavirus disease (COVID-19) continues in Karachi, Pakistan May 10, 2020. REUTERS/Akhtar Soomro

A young calf lies in the grass at a ranch owned by J.D. Hudgins Inc. in Wharton, Texas, U.S., April 30, 2020. REUTERS/Adrees Latif

A female cow stands next to her calf on a ranch owned by J.D. Hudgins Inc. in Wharton, Texas, U.S., April 30, 2020. REUTERS/Adrees Latif

A female cow stands next to her calf on a ranch owned by J.D. Hudgins Inc. in Wharton, Texas, U.S., April 30, 2020. REUTERS/Adrees Latif

A female cow stands next to her calf on a ranch owned by J.D. Hudgins Inc. in Wharton, Texas, U.S., April 30, 2020. REUTERS/Adrees Latif

A Holstein calf is seen at Alfred Brandt's dairy farm, which has been in his family since 1840 and has been affected by the industry's supply chain disruptions created by the coronavirus disease (COVID-19), in Linn, Missouri, U.S. April 28, 2020. Brandt, along with other U.S. dairy farmers, has seen a drop in milk prices and has been forced to dump excess milk as a result of the closure of schools, restaurants and coffee shops. REUTERS/Whitney Curtis

A Holstein calf is seen at Alfred Brandt's dairy farm, which has been in his family since 1840 and has been affected by the industry's supply chain disruptions created by the coronavirus disease (COVID-19), in Linn, Missouri, U.S. April 28, 2020. Brandt, along with other U.S. dairy farmers, has seen a drop in milk prices and has been forced to dump excess milk as a result of the closure of schools, restaurants and coffee shops. REUTERS/Whitney Curtis