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Sir David Attenborough, naturalist and veteran broadcaster, is all set to unveil the biggest dinosaur that has ever walked the planet in its upcoming show. The discovered dinosaur that is yet to be named weighs around 70 tons, average weight of as many as 920 adults and measured 37 meters in length from the tip of his nose to the end of his tail. This huge dinosaur was spotted by a Patagonian shepherd who sawa thigh bone as long as 2.4 meters jutting out of a rock at La Flecha farm in the province of Chubut, Argentina, in 2014. This large dinosaur dwarfs 'Dippy' the Diplodocus that is 26m long and exhibited at the Natural History Museum in London, reported Independent.

Paleontologist also exposed more than 220 fossilized bones that belonged to seven different dinosaurs, one of which is considered as the largest ever to walk the planet. Based on the number of bones, the experts were able to assess its weight almost accurately that estimated to be 70 metric tons. Even though the blue whale is heavier than this, it does not count as it is a sea animal. Some bones even weighed as much as half a metric ton which made it difficult to remove them from their location to the nearest town located at a distance of three hours. As per the analysis of these leg bones, the huge titanosaurs were in their prime and had still not reached full growth. So it is safe to assume that the fully grown specimen would be even larger. Dr. Diego Pol, lead scientist on the excavation based at the Museum of Paleontology Egidio Feruglio, in Trelew, Argentina said: "It was like a paleontological crime scene, a unique thing that you don't find anywhere else in the world with the potential of discovering all kinds of new facts about titanosaurs, reports Telegraph