Head Games Show Whether Dinos Went on Two Legs or Four

摘要

Your mother was right: Posture matters, For dinosaurs, it's one of the most basic features that paleontologists--and exhibit designers--want to know In Denver, a trio of paleontolbgists presented a broad survey of dinosaur's and showed that the shapeof the inner ear canals can reveal whether a dinosaur stood upright or walked on all fours. The approach is great, says Donald Henderson, who studies dinosaur biomechanics at the University of Calgary in Alberta, Canada "It's a completely independent, objective source of evidence"