Why do only mammals have tusks? Study traces their surprising origins
By Katie Hunt, CNN Tusks are a striking feature of many animals — elephants, hippos, warthogs, walruses — and are often sought-after by…
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By Katie Hunt, CNN Tusks are a striking feature of many animals — elephants, hippos, warthogs, walruses — and are often sought-after by…
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CNN Editorial Research Here’s a look at Daylight Saving Time, a system to reduce electricity usage by extending daylight hours. Facts Sunday,…
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By Lindsay Isaac and Niamh Kennedy, CNN A US judge has set a deadline of mid-July next year for Prince Andrew to answer questions under oath in the…
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The National Intelligence Estimate (NIE) on climate change has identified a link between climate change and migration. CNN meteorologist Derek Van…
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By John Keefe and Rachel Ramirez, CNN Nearly 200 countries have pledged to cut greenhouse gas emissions to prevent the worst consequences of the…
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By Amy Woodyatt, CNN Scientists may have detected signs of a planet transiting a star outside of the Milky Way, in what could be the first planet…
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90-year-old William Shatner makes history as oldest person in space; he got emotional after his real-life star trek, saying “I hope I never…
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By Matt Rivers, CNN An eerie silence lingers over Hospital Universitaire de la Paix in the Delmas neighborhood of Port-au-Prince. Footsteps echo…
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CNN’s Matt Rivers reports on the dire situation in Haiti where powerful gangs are preventing hospitals from getting the fuel they need to power…
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Although the 17 missionaries from the US and Canada who were kidnapped in Haiti are generating international headlines, it’s Haitians who bear most…
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By Megan Marples, CNN If animals could be nominated for Grammys, these lemurs could win. That’s because they’ve got rhythm. The Indri…
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By Rob Picheta, CNN The concentration of greenhouse gases in the atmosphere has once again reached record highs, according to a UN report published…
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A new UN report says fossil fuel usage is expected to be too high to limit global warming to 1.5 degrees Celsius by 2030. CNN’s Brandon Miller…
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Marine biologists make a colossal, 4,000-pound catch on the high seas ….Today in…
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By Katie Hunt, CNN Mammoths and other giant creatures of the Ice Age such as woolly rhinos survived longer than scientists thought, coexisting with…
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By Kareem El Damanhoury, Isil Sariyuce and Alaa Elassar, CNN Turkey’s President Recep Tayyip Erdogan has ordered the ambassadors of 10…
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By Ashley Strickland, CNN Life is a series of mysteries. We are fascinated by true crime stories, and take comfort in watching a good ol’…
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By Ashley Strickland, CNN The domestication of horses changed the course of human history, but scientists have tried for years to figure out when and…
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By Ashley Strickland, CNN The launch of Artemis I, an uncrewed mission serving as the first step of NASA’s ambitious program to return humans…
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By Noah Sheidlower, Melissa Velasquez and Justin Lear, CNN To the surprise of researchers and sunfish enthusiasts worldwide, a more than 4,000-pound…
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By Sara Spary, CNN Hopes that mankind can save the northern white rhino from extinction appeared more remote than ever this week, after scientists…
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By Megan Marples, CNN A dinosaur fossil footprint found about 50 years ago is from a plant-eating dinosaur — not a huge meat-eating dinosaur as…
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By Ashley Strickland, CNN Astronomers had an unprecedented front-row seat to the explosive death of a star 60 million light-years away. They…
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By Ashley Strickland, CNN The first NASA mission that will fly by eight ancient asteroids launched early Saturday morning, but not everything went…
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By Tara John, CNN British and international authorities are closely monitoring a subtype of the Delta variant that is causing a growing number of…
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The UK is seeing a rise in coronavirus cases months after having lifted all restrictions earlier this year. Dr. Eric Topol, Professor of Molecular…
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Fatih Birol, executive director of the International Energy Agency, warns of more turbulence in the energy markets and missing climate goals without…
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By Ivana Kottasová, CNN Video and Photos by Temujin Doran, CNN Design by Carlotta Dotto, CNN The windswept valleys surrounding the Hengill volcano…
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By Sherry Liang, CNN October’s full moon, the hunter’s moon, and the Orionid meteor shower are on this week’s celestial forecast,…
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By Ashley Strickland, CNN Scientists are aiming little ray gun-like devices, called leaf clips, at plants in an attempt to better understand…
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