Related topics: dinosaurs · fossil

Fossil dental exams reveal how tusks first evolved

A wide variety of animals have tusks, from elephants and walruses to five-pound, guinea pig-looking critters called hyraxes. But one thing tusked animals have in common is that they're all mammals—there are no known fish, ...

Interglobular dentine identified in cremated human teeth

The cremation process destroys a lot of information that can usually be obtained from the human skeleton. Diseases are especially difficult to observe. This has caused a paucity in our knowledge of the disease load in populations ...

Plant-eating lizards on the cusp of tooth evolution

Researchers at the Universities of Helsinki and Lyon and the Geological Survey of Finland found that complex teeth, a hallmark of mammals, also evolved several times in reptiles, prompting the evolutionary success of plant-eating ...

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