What does this mean? First, grooves that resemble "toothpick" marks don't necessarily prove tool use. Natural chewing, abrasive foods, or even swallowed grit can produce similar patterns. In some ...
A large comparative study of primate teeth shows that grooves once linked to ancient human tooth-picking can form naturally, while some common modern dental problems appear uniquely human.
Teeth first evolved as sensory tissue in the armored exoskeletons of ancient fish, fossil scans find
CT scan of the front of a skate, showing the hard, tooth-like denticles on its skin (shown in orange). Credit: Yara Haridy CT scan of the front of a skate, showing the hard, tooth-like denticles on ...
Ian Towle receives funding from the Australian Research Council (ARC DP240101081). Luca Fiorenza receives funding from the Australian Research Council (ARC DP240101081). For decades, small grooves on ...
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