The animal has 700000 teeth is the rainbow slug.
The rainbow slug has over 700,000 microscopic teeth.
Instead of having a traditional jaw, the rainbow slug has teeth that line a ribbon like tongue that is called a radula.
The radula that the rainbow slug has acts as a biological rasping conveyor belt that constantly scrapes and regenerates to feed on hard bodied marine life.
Unlike human teeth, the rainbow slug teeth are tiny, backward pointing denticles that are made of chitin, which is the same durable material that is also found in insect exoskeletons.
The rainbow slugs radula extends from their mouth and works like a microscopic file or a belt sander for example, which shreds and pulls food into the rainbow slugs digestive tract.
And because the teeth of the rainbow slug face constant wear and tear from grinding against hard surfaces, the rainbow slug continuously grows new teeth at the back of the radula and move forward as older teeth fall out.
The "rainbow slug" also known as the Babakina anadoni, is an incredibly rare, vibrant nudibranch (sea slug) with a striking purple body and neon-colored appendages (cerata).
The rainbow sea slug is a visually spectacular species of nudibranch often found in the warmer waters of the Atlantic (such as Spain, Portugal, and France).
In recent years, sightings of rainbow slugs have expanded as far north as the UK due to warming sea temperatures.
The rainbow slug grows to a maximum of about 2cm to 3cm in length.
The base of the rainbow slugs body is typically a bright shade of purple, adorned with appendages (cerata) that feature brilliant contrasting shades of blue, white, yellow, and pink.
These rainbow slug, sea slugs feed primarily on hydroids.
And they are entirely shell-less and use their neon colors as an aposematic (warning) signal to predators that they may be toxic.
The rainbow slug also stores defensive chemicals stolen from the prey they consume.
Because they are so small and delicate, divers and nature enthusiasts consider spotting a rainbow slug a major treat.