#1 by DougC » Feb 04, 2015 6:49 pm
http://www.bbc.co.uk/news/science-environment-31111843B.B.C. Article
Scientists say the largest ever rodent probably used its huge front teeth like tusks, defending itself and digging with them instead of just biting food.
The bull-sized cousin to the guinea pig died out around two million years ago.
Based on a CT scan of its skull and subsequent computer simulations, its bite was as strong as a tiger - but its front teeth were built to withstand forces nearly three times larger.
This suggests that its 30cm incisors were much more than eating implements.
Researchers from York in the UK and Montevideo in Uruguay published the work in the
Journal of Anatomy.
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