National Forest and Wildlife Service (SERFOR) and Peruvian police show confiscated wild stuffed animals and products used by shamans in Lima, Peru July 19, 2018. REUTERS/Guadalupe Pardo 

A "super blood blue moon" is seen during an eclipse behind an elephant statue at a temple in Bangkok, Thailand, January 31, 2018. REUTERS/Athit Perawongmetha 

A "super blood blue moon" is seen behind an elephant statue during an eclipse at a temple in Bangkok, Thailand, January 31, 2018. REUTERS/Athit Perawongmetha 

An elephant tusks batch seized from traffickers by Ivorian wildlife agents is pictured in Abidjan, Ivory Coast January 25, 2018. REUTERS/Luc Gnago 

Round-sliced ivory is cut for making 'hanko' or carved name seals at a factory in Tokyo, Japan November 28, 2016. Picture taken November 28, 2016. REUTERS/Issei Kato 

Evenly sized cut pieces of ivories for making 'hanko' or carved name seals are seen at a factory in Tokyo, Japan November 28, 2016. Picture taken November 28, 2016. REUTERS/Issei Kato 

Fire burns part of an estimated 105 tonnes of ivory and a tonne of rhino horn confiscated from smugglers and poachers at the Nairobi National Park near Nairobi, Kenya, April 30, 2016. REUTERS/Siegfried Modola TPX IMAGES OF THE DAY

A sculpture with ivory finishings is seen among ornaments arranged near a pile of elephant tusks, part of an estimated 105 tonnes of confiscated ivory to be set ablaze, at Nairobi National Park near Nairobi, Kenya, April 28, 2016. REUTERS/Thomas Mukoya 

Traditional Maasai tribesmen pose for a photograph near elephant tusks, part of an estimated 105 tonnes of confiscated ivory to be set ablaze, stacked onto a pyre at Nairobi National Park near Nairobi, Kenya, April 28, 2016. REUTERS/Thomas Mukoya TPX IMAGES OF THE DAY

Elephant tusks, part of an estimated 105 tonnes of confiscated ivory to be set ablaze, are stacked onto pyres at Nairobi National Park near Nairobi, Kenya, April 28, 2016. REUTERS/Thomas Mukoya 

A traditional Maasai tribesman holds an elephant tusk, part of an estimated 105 tonnes of confiscated ivory to be set ablaze, at Nairobi National Park near Nairobi, Kenya, April 28, 2016. REUTERS/Thomas Mukoya 

A Kenya Wildlife Service (KWS) ranger stacks elephant tusks, part of an estimated 105 tonnes of confiscated ivory to be set ablaze, onto a pyre at Nairobi National Park near Nairobi, Kenya, April 28, 2016. REUTERS/Thomas Mukoya 

Contractors carry elephant tusks, part of an estimated 105 tonnes of confiscated ivory to be set ablaze, to a pyre at Nairobi National Park near Nairobi, Kenya, April 20, 2016. REUTERS/Thomas Mukoya? 

A contractor carries an elephant tusk, part of an estimated 105 tonnes of confiscated ivory to be set ablaze, to a pyre at Nairobi National Park near Nairobi, Kenya, April 20, 2016. REUTERS/Thomas Mukoya 

A contractor carries an elephant tusk, part of an estimated 105 tonnes of confiscated ivory to be set ablaze, to a pyre at Nairobi National Park near Nairobi, Kenya, April 20, 2016. REUTERS/Thomas Mukoya 

A contractor carries elephant tusks, part of an estimated 105 tonnes of confiscated ivory to be set ablaze, to a pyre at Nairobi National Park near Nairobi, Kenya, April 20, 2016. REUTERS/Thomas Mukoya 

Kenya Wildlife Service (KWS) rangers stack elephant tusks, part of an estimated 105 tonnes of confiscated ivory to be set ablaze, on a pyre at Nairobi National Park near Nairobi, Kenya, April 20, 2016. REUTERS/Thomas Mukoya? 

Kenya Wildlife Service (KWS) rangers stack elephant tusks, part of an estimated 105 tonnes of confiscated ivory to be set ablaze, on a pyre at Nairobi National Park near Nairobi, Kenya, April 20, 2016. REUTERS/Thomas Mukoya

Kenya Wildlife Service (KWS) rangers stack elephant tusks, part of an estimated 105 tonnes of confiscated ivory to be set ablaze, on a pyre at Nairobi National Park near Nairobi, Kenya, April 20, 2016. REUTERS/Thomas Mukoya? 

Kenya Wildlife Service (KWS) rangers stack elephant tusks, part of an estimated 105 tonnes of confiscated ivory to be set ablaze, on a pyre at Nairobi National Park near Nairobi, Kenya, April 20, 2016. REUTERS/Thomas Mukoya TPX IMAGES OF THE DAY

Kenya Wildlife Service (KWS) Director General Kitili Mbathi and Winnie Kiiru, Country director of Stop Ivory, stack an elephant tusk, part of an estimated 105 tonnes of confiscated ivory to be set ablaze, on a pyre at Nairobi National Park near Nairobi, Kenya, April 20, 2016. REUTERS/Thomas Mukoya?? 

A Kenya Wildlife Service (KWS) ranger stacks elephant tusks, part of an estimated 105 tonnes of confiscated ivory to be set ablaze, on a pyre at Nairobi National Park near Nairobi, Kenya, April 20, 2016. REUTERS/Thomas Mukoya 

Kenya Wildlife Service (KWS) rangers carry elephant tusks at their headquarters as part of an estimated 106 tonnes of confiscated ivory to be set ablaze in Kenya's capital Nairobi April 15, 2016. REUTERS/Thomas Mukoya TPX IMAGES OF THE DAY 

Lorenzo Tello skins a dead wild boar at the end of a hunt in Castell'Azzara, Tuscany, central Italy, October 23, 2015. Extinct across much of the country by the end of the 1800s, the number of wild boar in Italy has almost doubled over the past decade and there are now about a million roaming the country, environmental and agricultural associations say. Rampaging boar, along with other wild animals like river rats, have racked up almost 100 million euros ($110 million)worth of damage by destroying crops, killing livestock and causing road accidents in the past year, according to agricultural group Coldiretti. Picture taken October 23, 2015. To match Feature ITALY-BOAR/ REUTERS/Max Rossi 

Lorenzo Tello (C) and Dario Nutarelli skin a dead wild boar at the end of a hunt in Castell'Azzara, Tuscany, central Italy, October 23, 2015. Extinct across much of the country by the end of the 1800s, the number of wild boar in Italy has almost doubled over the past decade and there are now about a million roaming the country, environmental and agricultural associations say. Rampaging boar, along with other wild animals like river rats, have racked up almost 100 million euros ($110 million)worth of damage by destroying crops, killing livestock and causing road accidents in the past year, according to agricultural group Coldiretti. Picture taken October 23, 2015. To match Feature ITALY-BOAR/ REUTERS/Max Rossi 

A man displays a handbag made from crocodile skin at a boutique shop in Panama City September 8, 2015. Gladys Vallarino, owner of the specialty boutique shop selling items made from crocodiles, also owns Panagator, a sustainable crocodile farm on the outskirts of Panama City. She says the farm looks after more than 19,000 Acutus and Fuscus species of crocodiles and donates five percent of its crocodiles annually to the Panamanian authorities to be put into the wild, in accordance with the regulations of the CITES (Convention of International Trade in Endangered Species). The handmade fashion items in the shop sell for $200 to $3,000. Picture taken September 8, 2015. REUTERS/Carlos Jasso 

Buddhist monks pray during an ivory destruction ceremony at the Department of National Parks, Wildlife and Plant Conservation, in Bangkok, Thailand, August 26, 2015. About two tonnes (2,155.17 kg) of ivory were crushed and incinerated during the ceremony as part of a campaign against poachers, traffickers and traders involved in the illicit trade in ivory, according to a Department of National Parks, Wildlife and Plant Conservation press release. REUTERS/Chaiwat Subprasom 

An official holds a confiscated elephant tusk before destroying the ivory at the Department of National Parks, Wildlife and Plant Conservation, in Bangkok, Thailand, August 26, 2015. About two tonnes (2,155.17 kg) of ivory were crushed and incinerated during the ceremony as part of a campaign against poachers, traffickers and traders involved in the illicit trade in ivory, according to a Department of National Parks, Wildlife and Plant Conservation press release. REUTERS/Chaiwat Subprasom 

Officials hold confiscated elephant tusks before destroying the ivory at the Department of National Parks, Wildlife and Plant Conservation, in Bangkok, Thailand, August 26, 2015. About two tonnes (2,155.17 kg) of ivory were crushed and incinerated during the ceremony as part of a campaign against poachers, traffickers and traders involved in the illicit trade in ivory, according to a Department of National Parks, Wildlife and Plant Conservation press release. REUTERS/Chaiwat Subprasom 

Officials hold confiscated elephant tusks before destroying the ivory at the Department of National Parks, Wildlife and Plant Conservation, in Bangkok, Thailand, August 26, 2015. About two tonnes (2,155.17 kg) of ivory were crushed and incinerated during the ceremony as part of a campaign against poachers, traffickers and traders involved in the illicit trade in ivory, according to a Department of National Parks, Wildlife and Plant Conservation press release. REUTERS/Chaiwat Subprasom 

Officials hold confiscated elephant tusks before destroying the ivory at the Department of National Parks, Wildlife and Plant Conservation, in Bangkok, Thailand, August 26, 2015. About two tonnes (2,155.17 kg) of ivory were crushed and incinerated during the ceremony as part of a campaign against poachers, traffickers and traders involved in the illicit trade in ivory, according to a Department of National Parks, Wildlife and Plant Conservation press release. REUTERS/Chaiwat Subprasom 

Officials hold confiscated elephant tusks before destroying the ivory at the Department of National Parks, Wildlife and Plant Conservation, in Bangkok, Thailand, August 26, 2015. About two tonnes (2,155.17 kg) of ivory were crushed and incinerated during the ceremony as part of a campaign against poachers, traffickers and traders involved in the illicit trade in ivory, according to a Department of National Parks, Wildlife and Plant Conservation press release. REUTERS/Chaiwat Subprasom 

An official stands guard behind confiscated elephant tusks at an ivory destruction ceremony at the Department of National Parks, Wildlife and Plant Conservation, in Bangkok, Thailand, August 26, 2015. About two tonnes (2,155.17 kg) of ivory were crushed and incinerated during the ceremony as part of a campaign against poachers, traffickers and traders involved in the illicit trade in ivory, according to a Department of National Parks, Wildlife and Plant Conservation press release. REUTERS/Chaiwat Subprasom 

Buddhist monks pray during an ivory destruction ceremony at the Department of National Parks, Wildlife and Plant Conservation, in Bangkok, Thailand, August 26, 2015. About two tonnes (2,155.17 kg) of ivory were crushed and incinerated during the ceremony as part of a campaign against poachers, traffickers and traders involved in the illicit trade in ivory, according to a Department of National Parks, Wildlife and Plant Conservation press release. REUTERS/Chaiwat Subprasom 

Thailand's Prime Minister Prayuth Chan-ocha wears a helmet and a pair of sun glasses while attending an ivory destruction ceremony at the Department of National Parks, Wildlife and Plant Conservation, in Bangkok, Thailand, August 26, 2015. About two tonnes (2,155.17 kg) of ivory were crushed and incinerated during the ceremony as part of a campaign against poachers, traffickers and traders involved in the illicit trade in ivory, according to a Department of National Parks, Wildlife and Plant Conservation press release. REUTERS/Chaiwat Subprasom 

Thailand's Prime Minister Prayuth Chan-ocha (2nd R) looks at confiscated elephant tusks during an ivory destruction ceremony at the Department of National Parks, Wildlife and Plant Conservation, in Bangkok, Thailand, August 26, 2015. About two tonnes (2,155.17 kg) of ivory were crushed and incinerated during the ceremony as part of a campaign against poachers, traffickers and traders involved in the illicit trade in ivory, according to a Department of National Parks, Wildlife and Plant Conservation press release. REUTERS/Chaiwat Subprasom 

Thailand's Prime Minister Prayuth Chan-ocha gestures while attending an ivory destruction ceremony at the Department of National Parks, Wildlife and Plant Conservation, in Bangkok, Thailand, August 26, 2015. About two tonnes (2,155.17 kg) of ivory were crushed and incinerated during the ceremony as part of a campaign against poachers, traffickers and traders involved in the illicit trade in ivory, according to a Department of National Parks, Wildlife and Plant Conservation press release. REUTERS/Chaiwat Subprasom 

Officials hold confiscated elephant tusks before destroying the ivory at the Department of National Parks, Wildlife and Plant Conservation, in Bangkok, Thailand, August 26, 2015. About two tonnes (2,155.17 kg) of ivory were crushed and incinerated during the ceremony as part of a campaign against poachers, traffickers and traders involved in the illicit trade in ivory, according to a Department of National Parks, Wildlife and Plant Conservation press release. REUTERS/Chaiwat Subprasom TPX IMAGES OF THE DAY

Officials hold confiscated elephant tusks before destroying the ivory at the Department of National Parks, Wildlife and Plant Conservation in Bangkok, Thailand, August 26, 2015. About two tonnes (2,155.17 kg) of ivory were crushed and incinerated during the ceremony as part of a campaign against poachers, traffickers and traders involved in the illicit trade in ivory, according to a Department of National Parks, Wildlife and Plant Conservation press release. REUTERS/Chaiwat Subprasom 

Animal rights activists hold placards as they chant slogans during a demonstration in front of Kenya's Supreme Court in Nairobi, August 24, 2015. Kenyan activists gathered to protest in opposition to a ruling made by a Kenyan court in Mombasa on August 21, 2015, which granted a Kes10 million bond to suspected Kenyan ring-leader of an ivory smuggling gang Feisal Ali Mohamed, also one of the nine most wanted environmental crime fugitives worldwide listed by Interpol. Feisal was arrested with 4 others for being in possession of 2,152 kg of ivory in Mombasa. REUTERS/Thomas Mukoya 

Animal rights activists hold the Kenyan flag and placards as they chant slogans during a demonstration in front of Kenya's Supreme Court in Nairobi, August 24, 2015. Kenyan activists gathered to protest in opposition to a ruling made by a Kenyan court in Mombasa on August 21, 2015, which granted a Kes10 million bond to suspected Kenyan ring-leader of an ivory smuggling gang Feisal Ali Mohamed, also one of the nine most wanted environmental crime fugitives worldwide listed by Interpol. Feisal was arrested with 4 others for being in possession of 2,152 kg of ivory in Mombasa. REUTERS/Thomas Mukoya 

Animal activists hold placards as they chant slogans during a demonstration in front of Kenya's Supreme Court in Nairobi, August 24, 2015. Kenyan activists gathered to protest in opposition to a ruling made by a Kenyan court in Mombasa on August 21, 2015, which granted a Kes10 million bond to suspected Kenyan ring-leader of an ivory smuggling gang Feisal Ali Mohamed, also one of the nine most wanted environmental crime fugitives worldwide listed by Interpol. Feisal was arrested with 4 others for being in possession of 2,152 kg of ivory in Mombasa. REUTERS/Thomas Mukoya 

Animal activists hold placards as they chant slogans during a demonstration in front of Kenya's Supreme Court in Nairobi, August 24, 2015. Kenyan activists gathered to protest in opposition to a ruling made by a Kenyan court in Mombasa on August 21, 2015, which granted a Kes10 million bond to suspected Kenyan ring-leader of an ivory smuggling gang Feisal Ali Mohamed, also one of the nine most wanted environmental crime fugitives worldwide listed by Interpol. Feisal was arrested with 4 others for being in possession of 2,152 kg of ivory in Mombasa. REUTERS/Thomas Mukoya 

Ivory confiscated by Zurich airport customs is seen at Zurich airport, Switzerland, August 4, 2015. Zurich airport customs presented to the press 262 kg (577 pounds) of confiscated ivory, the greatest seizure ever made by Zurich customs, officials said. REUTERS/Ruben Sprich

Ivory confiscated by Zurich airport customs is seen at Zurich airport, Switzerland, August 4, 2015. Zurich airport customs presented to the press 262 kg (577 pounds) of confiscated ivory, the greatest seizure ever made by Zurich customs, officials said. REUTERS/Ruben Sprich

Ivory confiscated by Zurich airport customs is seen at Zurich airport, Switzerland, August 4, 2015. Zurich airport customs presented to the press 262 kg (577 pounds) of confiscated ivory, the greatest seizure ever made by Zurich customs, officials said. REUTERS/Ruben Sprich

Ivory confiscated by Zurich airport customs is seen at Zurich airport, Switzerland, August 4, 2015. Zurich airport customs presented to the press 262 kg (577 pounds) of confiscated ivory, the greatest seizure ever made by Zurich customs, officials said. REUTERS/Ruben Sprich

Ivory confiscated by Zurich airport customs is seen at Zurich airport, Switzerland, August 4, 2015. Zurich airport customs presented to the press 262 kg (577 pounds) of confiscated ivory, the greatest seizure ever made by Zurich customs, officials said. REUTERS/Ruben Sprich

Ivory confiscated by Zurich airport customs is seen at Zurich airport, Switzerland, August 4, 2015. Zurich airport customs presented to the press 262 kg (577 pounds) of confiscated ivory, the greatest seizure ever made by Zurich customs, officials said. REUTERS/Ruben Sprich

Ivory confiscated by Zurich airport customs is seen at Zurich airport, Switzerland, August 4, 2015. Zurich airport customs presented to the press 262 kg (577 pounds) of confiscated ivory, the greatest seizure ever made by Zurich customs, officials said. REUTERS/Ruben Sprich

Ivory confiscated by Zurich airport customs is seen at Zurich airport, Switzerland, August 4, 2015. Zurich airport customs presented to the press 262 kg (577 pounds) of confiscated ivory, the greatest seizure ever made by Zurich customs, officials said. REUTERS/Ruben Sprich

The head of the customs office at Zurich airport, Heinz Widmer, carries ivory at Zurich airport, Switzerland, August 4, 2015. Zurich airport customs presented to the press 262 kg (577 pounds) of confiscated ivory, the greatest seizure ever made by Zurich customs, officials said. REUTERS/Ruben Sprich

The head of the customs office at Zurich airport, Heinz Widmer, carries ivory at Zurich airport, Switzerland, August 4, 2015. Zurich airport customs presented to the press 262 kg (577 pounds) of confiscated ivory, the greatest seizure ever made by Zurich customs, officials said. REUTERS/Ruben Sprich

U.S. graduate students scrape soil into a dustpan as they try to uncover implements fashioned from quartz that were used 100,000 years ago to prepare animal hides, at Swartkrans cave, northwest of Johannesburg July 9, 2015. The new ground being broken on the rocky hillside 25 km (15 miles) northwest of Johannesburg helps to reveal the material culture of our ancestors a thousand millennia ago, shortly after they had evolved into our species, Homo sapiens. Picture taken July 9. REUTERS/Christa Cameron 

U.S. graduate students scrape soil into a dustpan as they try to uncover implements fashioned from quartz that were used 100,000 years ago to prepare animal hides, at Swartkrans cave, northwest of Johannesburg July 9, 2015. The new ground being broken on the rocky hillside 25 km (15 miles) northwest of Johannesburg helps to reveal the material culture of our ancestors a thousand millennia ago, shortly after they had evolved into our species, Homo sapiens. Picture taken July 9. REUTERS/Christa Cameron 

Kenya's Cabinet Secretary Ministry of Environment and Natural Resources Judi Wakhungu touches elephant tusks recovered from various operations at the Kenya Wildlife Services (KWS) headquarters in the capital Nairobi, July 21, 2015, during the commissioning of the inventory exercise of the national elephant ivory and rhino horn stockpile. The Kenya Wildlife Service (KWS) undertakes an annual audit of the government’s trophy stockpile, according to the KWS. REUTERS/Thomas Mukoya 

Elephant tusks recovered from various operations are arranged at the Kenya Wildlife Services (KWS) headquarters in Kenya's capital Nairobi, July 21, 2015, during the commissioning of the inventory exercise of the national elephant ivory and rhino horn stockpile. The Kenya Wildlife Service (KWS) undertakes an annual audit of the government’s trophy stockpile, according to the KWS. REUTERS/Thomas Mukoya 

Scientists record data of elephant tusks recovered from various operations at the Kenya Wildlife Services (KWS) headquarters in Kenya's capital Nairobi, July 21, 2015, during the commissioning of the inventory exercise of the national elephant ivory and rhino horn stockpile. The Kenya Wildlife Service (KWS) undertakes an annual audit of the government’s trophy stockpile, according to the KWS. REUTERS/Thomas Mukoya 

Scientists weigh elephant tusks recovered from various operations at the Kenya Wildlife Services (KWS) headquarters in Kenya's capital Nairobi, July 21, 2015, during the commissioning of the inventory exercise of the national elephant ivory and rhino horn stockpile. The Kenya Wildlife Service (KWS) undertakes an annual audit of the government’s trophy stockpile, according to the KWS. REUTERS/Thomas Mukoya 

A scientist uses a tablet to record data of elephant tusks recovered from various operations at the Kenya Wildlife Services (KWS) headquarters in Kenya's capital Nairobi, July 21, 2015, during the commissioning of the inventory exercise of the national elephant ivory and rhino horn stockpile. The Kenya Wildlife Service (KWS) undertakes an annual audit of the government’s trophy stockpile, according to the KWS. REUTERS/Thomas Mukoya