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Saber-Toothed Tigers Held onto Their Milk Teeth to Stabilize Their Sabers, Study Suggests


A new analysis of the distinctive canines of the saber-toothed tiger (Smilodon fatalis) suggests that the baby tooth that preceded each saber stayed in place for years to stabilize the growing permanent saber tooth.

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These Massive, Extinct Salmon Had Spiky Teeth Like a Warthog’s Tusks. For decades, scientists thought the teeth pointed downward, similar to those of a saber-toothed cat, but now they believe the fish’s chompers jutted out sideways.