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Dinosaur with 50-ft neck claims crown for longest necked animal ever

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An artist's impression of Mamenchisaurus sinocanadorum, which a new study claims had the longest neck of any animal that ever lived

It’s no secret that sauropods – a clade of giant dinosaurs that includes the famous Brachiosaurus – had really long necks, but now paleontologists claim to have identified the species that takes the crown. According to the team, Mamenchisaurus has the longest neck of any known animal ever, measuring almost 50 ft (over 15 m).

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How old is the universe? New studies disagree by a billion years

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The universe likes to play coy about its age, but astronomers believe they have a pretty good idea of the range. Now, a series of new studies has investigated the question using different methods – and they’ve come up with two different answers, separa… Continue reading How old is the universe? New studies disagree by a billion years→