If you’ve ever looked at an arowana gliding through an aquarium, you might have wondered: Do arowana have teeth? The short answer is yes and not just any teeth! These stunning fish are equipped with a fascinating set of chompers that make them the skilled predators they are. Let’s investigate what makes arowana teeth so unique, how they use them, and answer some common questions you might have.
Arowana Teeth: More Than Meets the Eye
Arowanas aren’t just beautiful, they’re also powerful hunters, and their teeth play a big part in that. While you may not notice their teeth at first glance, arowanas have a very special mouth structure. They’re often called “bonytongues” for good reason: on the floor of their mouths, they have a rigid, toothed bone that actually acts like a tongue. This bone bites against rows of teeth on the roof of their mouth, creating a firm grip on their prey.
But that’s not all. Along their jawlines, arowanas also sport rows of tiny, sharp teeth. These help them grasp and crush all kinds of prey, from fast-moving insects to crustaceans and even small fish. It’s a hunting toolkit that lets them thrive in the wild and makes them such fascinating creatures to watch in an aquarium.
How Do Arowanas Use Their Teeth?
Arowanas are surface feeders, often leaping from the water to snatch insects or small animals. Their unique teeth allow them to grab onto slippery or wriggling prey with ease. The bony “tongue” and roof-of-mouth teeth work together like a pair of pincers, holding prey tight. The jawline teeth then crush and help swallow their catch. It’s a bit similar to having a built-in nutcracker and grabber in one!
FAQs About Arowana Teeth
Q: Do arowana bite humans?
A: While their teeth are designed for grabbing prey, arowana aren’t typically aggressive toward humans. However, if you handle them carelessly or startle them, they could give a defensive nip, but they’re not dangerous to people.
Q: Can you see the arowana’s teeth easily?
A: Not really! Most arowana teeth are quite small and hidden inside their mouths. You’d need a close look (and a cooperative fish) to spot them.
Q: Are their teeth constantly replaced?
A: Like many fish, arowanas can regrow teeth if they lose them. This helps them stay effective hunters even as they age.
Q: What do arowana eat with those teeth?
A: In the wild, they eat insects, crustaceans, and small fish. In captivity, they might enjoy shrimp, pellets, or specially prepared food.
Q: What makes their teeth different from other fish?
A: The “bonytongue” structure is quite unique, and the combination of a toothed tongue and roof-of-mouth teeth is rare in the fish world.

Arowanas are truly fascinating, not just for their beauty, but for their one-of-a-kind teeth, too. Next time you see one, you’ll know there’s a lot more going on behind that elegant smile!




