The species was named Sphyragnathus tyche, combining Greek words “sphyra,” meaning hammer and “gnathus,” meaning jaw for the ...

In the past, many scientists believed that only mammals and birds could feel or think in complex ways. Reptiles, fish, and ...

Anxiety, the psychological and physiological state characterized by an anticipation of potential threats and a heightened ...

In 2015, two members of the Blue Beach Fossil Museum in Nova Scotia found a long, curved fossil jaw, bristling with teeth.

Parental egg-care in fish traps them in an evolutionary dead-end through the loss of the chorion-hardening system, according ...

At first glance, a fossil of a creature called Anatolepis looked like a vertebrate fish – and indeed, previous research from 1996 had identified it as one. Haridy and her colleagues noticed that ...

Mudskippers, amphibious fish dwelling in mudflats from Africa to South America, possess unique adaptations enabling them to ...

So Haridy turned to ancient vertebrate fish whose bumpy exoskeletons scientists believe evolved into our teeth. "As fish evolved a jaw and started to feed more like predators," she says, ...

Some fish have a hidden superpower—they can glow in vibrant colors under certain kinds of light. This natural glow, called ...

While they didn’t pin down the earliest vertebrate fish, Shubin said this discovery was more than worth the effort. “For some of these fossils that were putative early vertebrates, we showed that they ...

The recent discoveries of two rare deep-sea dwelling oarfish have sparked fears of a looming natural disaster. The fish were discovered in separate incidents in India and Tasmania within the last week ...

Sensory features on the armored exoskeletons of ancient fish may be the reason why humans have teeth that are sensitive to cold and other extremes.