A replica of what's believed to be the world's biggest dinosaur skeleton is going on display in Tokyo.
The massive 35m-long skeleton of the Mamenchisaurus dinosaur took experts ages to put together, as part of a specialist exhibition.
Mamenchisaurus dinosaurs were herbivores, which means they didn't eat meat, and are believed to have lived millions of years ago.
The original bones the model is based on were unearthed in Dzungaria, north western China, in 2001.
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