In a river of northern Bolivia, a silvery predator with “sharp” teeth swam through the murky waters. Its white eyes scanned the aquatic landscape, but it wasn’t the only one looking around. Nearby ...

The “large” creature with “thornlets” down its back had been previously misidentified as two different species, researchers ...

The “large” creature with “thornlets” down its back had been previously misidentified as two different species, researchers said.

The “large” creature with “thornlets” down its back had been previously misidentified as two different species, researchers said.

The “large” creature with “thornlets” down its back had been previously misidentified as two different species, researchers said.

The Fiji maskray, or Neotrygon romeoi, is a new species found only in Fiji and was previously misidentified as two other species of stingrays, experts said.

The “large” creature with “thornlets” down its back had been previously misidentified as two different species, researchers said.

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The research team included Kerstin Glaus, William T. White, Helen L. O’Neill, Sarah Thurnheer and Sharon A. Appleyard. Discover more new species Thousands of new species are found each year.