How Did We Get Our Teeth?

How did we — and every other toothed vertebrate on Earth — get teeth? Enquiring evolutionists want to know! In fact, they have been debating that question for some time. The discovery of teeth in a small extinct fish called Romundina has put a fresh face on the evolutionary story of how we got our smiles.

The Better to Eat You With, My Dear...

Cartilaginous fish like sharks have tooth-like scales covering their bodies. Those placoid scales are called "denticles." Unlike teeth, they fill in the gaps created on the animals' outer surface as it grows. Like teeth, however, placoid scales have an inner layer of dentine around a soft pulp and an outer covering of hard enamel. In fact, regardless of shape, the scales of fish both extinct and extant typically have an internal composition resembling teeth, with a bony core of dentin and a covering of layers of hard enamel or enamel-like material. Therefore, evolutionists generally maintain that scales and teeth share an evolutionary history. However, for evolutionists the question remains: Which evolved first — teeth or scales?

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