X-rays reveal hidden leg of an ancient snake

(PhysOrg.com) -- A novel X-ray imaging technology is helping scientists better understand how in the course of evolution snakes have lost their legs. The researchers hope the new data will help resolve a heated debate about ...

Why you should never arm wrestle a saber-toothed tiger

Saber-toothed cats may be best known for their supersized canines, but they also had exceptionally strong forelimbs for pinning prey before delivering the fatal bite, says a new study in the journal PLoS ONE.

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