Ghost sharks (also called chimaeras) are already weird. They have special electrical-sensing pores for navigating the deep ...

The sea lamprey looks like it’s from another planet, but this ancient creature has a surprising amount in common with humans ...

Losing your baby teeth is a strange experience. The teeth gradually loosen until they're replaced by thicker, more durable ...

Mexico’s waters are home to some of the most unusual fish you’ll ever see, and this trip proved it. Robert Field hooked into bizarre creatures armed with massive teeth that looked straight out of a ...

Male spotted ratfish have true teeth on a forehead appendage used for mating. Across vertebrates, teeth share many defining traits. Regardless of their shape, size, or sharpness, they stem from the ...

Cape Coral has a vast system of canals, which are the home to a variety of fish. Here are six you can try to catch.

From Japan to China to Toledo, zookeepers routinely brush hippos' teeth. In the wild, hippos rely on birds and fish for ...

Piranhas, notorious for sharp teeth and powerful bites, are specialized freshwater predators. Their anatomy and feeding behavior have evolved, making them efficient hunters capable of tearing through ...

Fish come in every shape and size, but the longest ones are downright startling. While most exist deep in the ocean, these ...

To track the arrival of invasive species in their beloved lake, the Newfound Lake Region Association monitors data from two ...

The fish’s sagittal otolith, one of the small “stones” found in the ear of the fish, is “triangular shaped” with a “tadpole shaped impression,” according to the study. The gas bladder, or swim bladder ...

Jussari catfish were found in a “clearwater stream” and hiding “mainly in the roots of the invasive species Hedychium coronarium,” a type of ginger lily, researchers said. Much about the new species’ ...