Saber-toothed predators—best known from the infamous Smilodon—evolved multiple times across different mammal groups. A study titled "Functional optimality underpins the repeated evolution of the ...

Loose teeth present a problem, affecting children and adults and often indicating an underlying issue demanding immediate attention. Whether it’s the wobbliness of a child’s tooth or the unexpected ...

I remember the gleam in my elder daughter’s eyes when she (finally) discovered her first loose tooth. That meant a visit from the tooth fairy. The tooth fairy, she had heard, was magical and kind, ...