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Meet — but don’t touch — the toxic invasive worm that experts say has been hiding in plain sight

By Mindy Weisberger, CNN (CNN) — Editor’s note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. They’re long and skinny. They’re boomerang-headed and coated in toxic mucus. And they’ve been hiding in plain sight in the US for a long time. Invasive hammerhead flatworms have distinctive

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Greta Thunberg pulls out of Edinburgh Book Festival appearance after accusing key sponsor of greenwashing

By Niamh Kennedy, CNN (CNN) — Climate activist Greta Thunberg has canceled an appearance at the Edinburgh International Book Festival after accusing one of the festival’s main sponsors of greenwashing. Thunberg announced her decision to pull out of the event in a statement shared by the festival on Friday, outlining her belief that as a

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Parts of South America are sweltering under a ‘fierce’ heatwave – and it’s the middle of winter

By Sophie Tanno, CNN (CNN) — Parts of South America are sweltering under abnormally hot temperatures – despite being in the depths of winter – as the combination of human-caused climate change and the arrival of El Niño feed into extreme winter heat. Southern Cone countries including Chile and Argentina have experienced summer-like conditions as

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