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When Chauvet Cave artists created its artwork, the Pont d Arc was already there

 E-Mail IMAGE: The Combe d Arc was greatly impacted by the gradual entrenchment of the Ardèche River view more  Credit: © Kim Génuite The Chauvet Cave, which lies by the entrance to the Gorges of the Ardèche, is home to the world s oldest cave paintings, dating back 36,000 years. Their state of preservation and aesthetic qualities earned them a spot on the World Heritage List in 2014, 20 years after their discovery. The location of the cavern surrounded by a remarkable landscape, next to the Pont d Arc natural archway raises the question of whether the people who executed these artworks looked and walked out upon the same landscape as today. Did they see the same natural archway? Scientists from the CNRS, Université Savoie Mont Blanc, and the Muséum National d Histoire Naturelle1 now know the answer. By studying the landform of the area and making novel use of applied mathematics to date sand transported by the Ardèche River, they determined that the Pont d Arc w

Meghalaya records India s first bat with sticky disks

Meghalaya records India’s first bat with sticky disks Updated: Updated: April 18, 2021 16:47 IST Eudiscopus denticulus was recorded from the Lailad area near the Nongkhyllem Wildlife Sanctuary, about 1,000 km west of its nearest known habitat in Myanmar Share Article Disk-footed bat recorded for the first time in India. SPECIAL ARRANGEMENT   | Photo Credit: Special Arrangement Eudiscopus denticulus was recorded from the Lailad area near the Nongkhyllem Wildlife Sanctuary, about 1,000 km west of its nearest known habitat in Myanmar Meghalaya has yielded India’s first bamboo-dwelling bat with sticky disks, taking the species count of the flying mammal in the country to 130. The disk-footed bat (

Pests wreak economic carnage of US$1 28 trillion

Stock image: Rosielen Raymon Photography New analysis has revealed the stark US$1.28 trillion economic damage caused by the world’s invasive species over the past half century, with a group of global experts warning damage and management costs will soar unless biodiversity agencies can improve prevention and control of biological invasions. The research, published in leading global scientific journal Nature, shows invasive species have damaged crop yields, critical national infrastructure, human health and diverted billions in taxpayer dollars annually, but too little is being done because the impact isn’t well-recognised by decision-makers and the public. Biological invasions take place when species of animals, plants and pathogens are deliberately or accidentally introduced in regions not previously occupied by these species.

The staggering cost of biological invasion

The staggering cost of biological invasion New study reveals that invasive species have cost US$1.28 trillion globally over the past 50 years. Two cane toads in Northern Australia. Credit: JohnCarnemolla / Getty Images Invasive species have cost the planet US$1.28 trillion over the past 50 years, according to a new analysis published in the journal . The team of authors warn these costs will continue to soar unless prevention and control is improved. The research reveals that biological invasion has hindered crop yields, damaged national infrastructure, and imperilled human health. But despite billions of taxpayer dollars diverted annually to fight the problem, the damage is not a major policy talking point.

Van Cleef & Arpels explores the history of gems

Van Cleef & Arpels explores the history of gems
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