File-This Jan. 14, 2016, file photo shows visitors to the American Museum of Natural History examining a replica of a 122-foot-long dinosaur on display at the American Museum of Natural History in New York. A study proclaims a newly named species the heavyweight champion of all dinosaurs. The plant-eating giant is the largest of a group of dinosaurs called titanosaurs (tye-TAN’-u-sawr). At 76 tons (69 metric tons), the behemoth was as heavy as a space shuttle. A scientific paper released Tuesday, Aug. 8, 2017, describes and dates the fossils found in southern Argentina in 2012. A skeleton of the dinosaur is already on display at the American Museum of Natural History in New York. (AP Photo/Mary Altaffer, File)
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