New research has uncovered differences in canine teeth between men and women. The discrepancies lie below the enamel in the dentine of the tooth, both in primates and humans, meaning that the ...

The discovery of a 300-million-year-old extinct reptile has provided evolutionary insight into the predatory nature of mammals. A study conducted by University of Bristol researchers and published in ...

Frightened babies expose their teeth; happy babies stretch their lips without extreme tooth exposure. Other primates expose their teeth with open mouth when threatened or with the mouth nearly closed ...

Adults typically have 32 teeth, four of which are wisdom teeth. A person will usually have an equal amount in the upper and lower rows of teeth. One 2019 article states that a full set of adult teeth ...