Professor Israel Hershkovitz works on a fossilised tusk from a giant prehistoric elephant that once roamed around the Mediterranean and has emerged from an excavation site in Revadim, southern Israel, offering what archaeologists said was a rare insight into the life of early inhabitants of the area August 31, 2022. REUTERS/Amir Cohen 

An aerial view shows the area where a fossilised tusk from a giant prehistoric elephant that once roamed around the Mediterranean has emerged from an excavation site, offering what archaeologists said was a rare insight into the life of early inhabitants of the area, in Revadim, southern Israel, August 31, 2022. REUTERS/Amir Cohen 

A fossilised tusk from a giant prehistoric elephant that once roamed around the Mediterranean has emerged from an excavation site, offering what archaeologists said was a rare insight into the life of early inhabitants of the area, in Revadim, southern Israel, August 31, 2022. REUTERS/ Amir Cohen 

An archeologist works on a fossilised tusk from a giant prehistoric elephant that once roamed around the Mediterranean has emerged from an excavation site, offering what archaeologists said was a rare insight into the life of early inhabitants of the area, in Revadim, southern Israel, August 31, 2022. REUTERS/ Amir Cohen 

Rodolfo Salas-Gismondi, founder and director of the paleontology department at the Museum of Natural History of the Universidad Nacional Mayor de San Marcos, shows fossil remains of crocodiles that inhabited the planet seven million years ago, giving scientists clues about how modern day crocodiles, who live in freshwater ecosystems, come from the sea, in Lima, Peru May 16, 2022. Picture taken May 16, 2022. REUTERS/Sebastian Castaneda 

Rodolfo Salas-Gismondi, founder and director of the paleontology department at the Museum of Natural History of the Universidad Nacional Mayor de San Marcos, shows the fossil remains of a crocodile that inhabited the planet seven million years ago, giving scientists clues about how modern day crocodiles, who live in freshwater ecosystems, come from the sea, in Lima, Peru May 16, 2022. Picture taken May 16, 2022. REUTERS/Sebastian Castaneda 

Rodolfo Salas-Gismondi, founder and director of the paleontology department at the Museum of Natural History of the Universidad Nacional Mayor de San Marcos, shows the fossil remains of a crocodile that inhabited the planet seven million years ago, giving scientists clues about how modern day crocodiles, who live in freshwater ecosystems, come from the sea, in Lima, Peru May 16, 2022. Picture taken May 16, 2022. REUTERS/Sebastian Castaneda 

Red ocher markings which were painted on stalagmites by Neanderthals about 65,000 years ago, according to an international study, are seen in a prehistoric cave in Ardales, southern Spain, August 7, 2021. Picture taken August 7, 2021. REUTERS/Jon Nazca 

A negative hand stencil in black, airbrushed on a rock 36,000 years ago, is seen in the "Room of the Stars", in a prehistoric cave where red ocher markings were painted on stalagmites by Neanderthals about 65,000 years ago, according to an international study, in Ardales, southern Spain, August 7, 2021. Picture taken August 7, 2021. REUTERS/Jon Nazca 

A guide looks at red ocher markings which were painted on stalagmites by Neanderthals about 65,000 years ago, according to an international study, in a prehistoric cave in Ardales, southern Spain, August 7, 2021. Picture taken August 7, 2021. REUTERS/Jon Nazca 

A negative hand stencil in black, airbrushed on a rock 36,000 years ago, is seen in the "Room of the Stars", in a prehistoric cave where red ocher markings were painted on stalagmites by Neanderthals about 65,000 years ago, according to an international study, in Ardales, southern Spain, August 7, 2021. Picture taken August 7, 2021. REUTERS/Jon Nazca 

Visitors walk in the "Room of the Stars", in a prehistoric cave where red ocher markings were painted on stalagmites by Neanderthals about 65,000 years ago, according to an international study, in Ardales, southern Spain, August 7, 2021. Picture taken August 7, 2021. REUTERS/Jon Nazca 

A guide iluminates red ocher markings which were painted on stalagmites by Neanderthals about 65,000 years ago, according to an international study, in a prehistoric cave in Ardales, southern Spain, August 7, 2021. Picture taken August 7, 2021. REUTERS/Jon Nazca 

Visitors walk in the "Room of the Stars", in a prehistoric cave where red ocher markings were painted on stalagmites by Neanderthals about 65,000 years ago, according to an international study, in Ardales, southern Spain, August 7, 2021. Picture taken August 7, 2021. REUTERS/Jon Nazca 

Red ocher markings which were painted on stalagmites by Neanderthals about 65,000 years ago, according to an international study, are seen in a prehistoric cave in Ardales, southern Spain, August 7, 2021. Picture taken August 7, 2021. REUTERS/Jon Nazca 

A guide shows red ocher markings which were painted on stalagmites by Neanderthals about 65,000 years ago, according to an international study, in a prehistoric cave in Ardales, southern Spain, August 7, 2021. Picture taken August 7, 2021. REUTERS/Jon Nazca 

The exterior of a prehistoric cave where red ocher markings were painted on stalagmites by Neanderthals about 65,000 years ago, according to an international study, is seen in Ardales, southern Spain, August 7, 2021. Picture taken August 7, 2021. REUTERS/Jon Nazca 

Red ocher markings which were painted on stalagmites by Neanderthals about 65,000 years ago, according to an international study, are seen in a prehistoric cave in Ardales, southern Spain, August 7, 2021. Picture taken August 7, 2021. REUTERS/Jon Nazca 

Red ocher markings which were painted on stalagmites by Neanderthals about 65,000 years ago, according to an international study, are seen in a prehistoric cave in Ardales, southern Spain, August 7, 2021. Picture taken August 7, 2021. REUTERS/Jon Nazca 

Director of the prehistoric cave of Ardales, Pedro Cantalejo, 64, and Gerardo, a guide, stand in the "Room of the Stars", in a prehistoric cave where red ocher markings were painted on stalagmites by Neanderthals about 65,000 years ago, according to an international study, in Ardales, southern Spain, August 7, 2021. Picture taken August 7, 2021. REUTERS/Jon Nazca 

Red ocher markings which were painted on stalagmites by Neanderthals about 65,000 years ago, according to an international study, are seen in a prehistoric cave in Ardales, southern Spain, August 7, 2021. Picture taken August 7, 2021. REUTERS/Jon Nazca 

Journalists walk in the rooms devoted to Parisian history from the prehistoric period and Middle-Ages at the Carnavalet-History of Paris Museum, located in the Marais district, during a press visit after four years of renovations in Paris, France, May 20, 2021. Picture taken May 20, 2021. REUTERS/Sarah Meyssonnier 

A woman takes a photograph of the artistic rendering of the head and face of a 13-year-old girl from the the prehistoric human species, Denisovan, based on technology developed by Hebrew University professor Liran Carmel and his team, at a news conference in Jerusalem September 19, 2019. REUTERS/Ammar Awad 

The artistic rendering of the head and face of a 13-year-old girl from the the prehistoric human species, Denisovan, based on technology developed by Hebrew University professor Liran Carmel and his team, is revealed at a news conference in Jerusalem September 19, 2019. REUTERS/Ammar Awad 

The artistic rendering of the head and face of a 13-year-old girl from the the prehistoric human species, Denisovan, based on technology developed by Hebrew University professor Liran Carmel and his team, is revealed at a news conference in Jerusalem September 19, 2019. REUTERS/Ammar Awad 

Hebrew University professor Liran Carmel, gestures next to the artistic rendering of the head and face of a 13-year-old girl from the the prehistoric human species, Denisovan, based on technology developed by Carmel and his team, during a news conference in Jerusalem September 19, 2019. REUTERS/Ammar Awad 

The artistic rendering of the head and face of a 13-year-old girl from the the prehistoric human species, Denisovan, based on technology developed by Hebrew University professor Liran Carmel and his team, is revealed at a news conference in Jerusalem September 19, 2019. REUTERS/Ammar Awad 

A man works next to a burial place at an excavation site where a huge prehistoric settlement was discovered by Israeli archaeologists in the town of Motza near Jerusalem July 16, 2019. REUTERS/Nir Elias 

A woman holds an arrowhead and a dagger, part of findings uncovered at a huge prehistoric settlement discovered by Israeli archaeologists in the town of Motza near Jerusalem July 16, 2019. REUTERS/Nir Elias 

Part of an excavation site where a huge prehistoric settlement was discovered by Israeli archaeologists, is seen in the town of Motza near Jerusalem July 16, 2019. REUTERS/Nir Elias 

A figurine, part of findings uncovered at a huge prehistoric settlement discovered by Israeli archaeologists, is seen at the excavation site in the town of Motza near Jerusalem July 16, 2019. REUTERS/Nir Elias 

A man holds a figurine depicting a human face, which is part of findings uncovered at a huge prehistoric settlement discovered by Israeli archaeologists, at the excavation site in the town of Motza near Jerusalem July 16, 2019. REUTERS/Nir Elias 

A man looks out from prehistoric stone fort of Grianan of Aileach looking out at the border between Ireland and Northern Ireland, seen from near the border village of Speenogue, Ireland, February 21, 2018. Picture taken February 1, 2018. REUTERS/Clodagh Kilcoyne 

A helicopter flies behind the Stonehenge stone circle during sunset in southwest Britain, July 26, 2018. REUTERS/Hannah McKay TPX IMAGES OF THE DAY 

The sun sets behind the Stonehenge stone circle in southwest Britain, July 26, 2018. REUTERS/Hannah McKay 

The sun sets behind the Stonehenge stone circle in southwest Britain, July 26, 2018. REUTERS/Hannah McKay 

The sun sets behind the Stonehenge stone circle in southwest Britain, July 26, 2018. REUTERS/Hannah McKay 

The sun sets behind the Stonehenge stone circle in southwest Britain, July 26, 2018. REUTERS/Hannah McKay 

A helicopter flies behind the Stonehenge stone circle during sunset in southwest Britain, July 26, 2018. REUTERS/Hannah McKay 

The sun sets behind the Stonehenge stone circle in southwest Britain, July 26, 2018. REUTERS/Hannah McKay 

The sun sets behind the Stonehenge stone circle in southwest Britain, July 26, 2018. REUTERS/Hannah McKay 

The sun sets behind the Stonehenge stone circle in southwest Britain, July 26, 2018. REUTERS/Hannah McKay 

A woman places her hand on a stone as revellers welcome in the Summer Solstice at Stonehenge stone circle in southwest Britain, June 21, 2018. REUTERS/Toby Melville 

Revellers place their hands on a stone as they welcome in the Summer Solstice at Stonehenge stone circle in southwest Britain, June 21, 2018. REUTERS/Toby Melville 

Bubbles are seen in the sky as revellers welcome in the Summer Solstice at Stonehenge stone circle in southwest Britain, June 21, 2018. REUTERS/Toby Melville 

The sun rises at dawn as revellers welcome in the Summer Solstice at Stonehenge stone circle in southwest Britain, June 21, 2018. REUTERS/Toby Melville 

The sun rises at dawn as revellers welcome in the Summer Solstice at Stonehenge stone circle in southwest Britain, June 21, 2018. REUTERS/Toby Melville 

Zig-zag steps lead up to the prehistoric stone fort of Grianan of Aileach where you can view the border between Ireland and Northern Ireland, seen from near the border village of Speenogue, Ireland, February 1, 2018. REUTERS/Clodagh Kilcoyne SEARCH "KILCOYNE BORDER" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

An ancient painting in a cave show rows of figures standing on what look like skis (top L), with herds of animals running below them, on the outskirts of Altay, Xinjiang Uighur Autonomous Region, China, January 25, 2018. REUTERS/Jason Lee SEARCH "CHINA SKIING" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Fossils are seem in the rocks at Dwejra outside the village of San Lawrenz on the island of Gozo, Malta, January 25, 2018. REUTERS/Darrin Zammit Lupi 

Fossils of sea shells are seen in the rocks on a cliff top outside Gharb, on the island of Gozo, Malta, January 25, 2018. REUTERS/Darrin Zammit Lupi 

People touch the prehistoric stones of the Stonehenge monument at dawn on the summer solstice near Amesbury, Britain June 21, 2017. REUTERS/Neil Hall 

The remains of a mammoth (Mammuthus Columbi) are pictured in Tultepec, on the outskirts of Mexico City, March 13, 2017. REUTERS/Carlos Jasso 

Restorers carry the jaw of a mammoth (Mammuthus Columbi) in Tultepec, on the outskirts of Mexico City, March 13, 2017. REUTERS/Carlos Jasso 

The remains of a mammoth (Mammuthus Columbi) are pictured in Tultepec, on the outskirts of Mexico City, March 13, 2017. REUTERS/Carlos Jasso 

The remains of a mammoth (Mammuthus Columbi) are pictured in Tultepec, on the outskirts of Mexico City, March 13, 2017. REUTERS/Carlos Jasso 

Revellers arrive to celebrate winter solstice at the 5000 year old stone age tomb of Newgrange in the Boyne Valley at sunrise in Newgrange, Ireland, December 21, 2016. REUTERS/Clodagh Kilcoyne 

Rebecca Smith poses for a photograph during winter solstice with her Irish Wolfhound dog called Amazing Grace at the 5000 year old stone age tomb of Newgrange in the Boyne Valley at sunrise in Newgrange, Ireland, December 21, 2016. REUTERS/Clodagh Kilcoyne 

A reveller celebrates winter solstice at the 5000 year old stone age tomb of Newgrange in the Boyne Valley at sunrise in Newgrange, Ireland, December 21, 2016. REUTERS/Clodagh Kilcoyne