By Colin Barras
Sauropod dinosaurs were so immense they needed four strong, pillar-like legs to support their bodies, which makes a discovery in Texas all the more bizarre. Fossil footprints found in 2007 that belonged to huge sauropods show they sometimes apparently walked on just their two forelimbs.
This isn’t the first time we have encountered forefoot-only sauropod footprints, but they are rare, says James Farlow at Purdue University Fort Wayne in Indiana.
He and his colleagues analysed 60 footprints found in a limestone quarry near …
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