What animal has 700000 teeth?

The Rainbow Slug: Nature’s Record Holder for Teeth

You might think sharks or crocodiles have the most teeth, but the real champion is far smaller—and far more colorful. Meet the rainbow slug, a dazzling creature that holds the surprising title for the most teeth in the animal kingdom: over 700,000!

These tiny teeth aren’t in a mouth like ours. Instead, they’re arranged on a ribbon-like structure called the radula, which functions like a flexible, tooth-covered tongue. As the slug glides along, the radula scrapes across surfaces, helping it feed on algae, fungi, and decaying plant matter. Think of it as nature’s built-in grater.

The rainbow slug, also known as Apoica bennetti or sometimes confused with the similarly dazzling Elysia sea slugs, earns its name from the iridescent sheen on its body. Found in damp, forested regions, this slow-moving marvel thrives in the quiet corners of the ecosystem, often unnoticed despite its brilliance.

What’s even more fascinating is how the radula continuously regenerates. As the front rows of teeth wear down from constant use, new ones move forward like a conveyor belt—ensuring the slug never loses its edge, literally. It’s a perfect adaptation for a life spent grazing on tough, microscopic meals.

So, while the rainbow slug may not have the bite of a predator, its dental dominance is unmatched. In the quiet world of leaf litter and mossy logs, this tiny, glistening creature quietly out-teethes every animal on Earth.