Stingray teeth are flattened and made of modified placoid scales (also called dermal denticles). These are the same type of scales found on a shark’s body.  Do Stingrays Replace Teeth? Like ...

A 661-pound stingray caught in the Mekong was tagged and tracked. The data is giving scientists new insight into a fragile ecosystem. By Rachel Nuwer Researchers may have solved a big mystery ...