Humans Got Their Flexible and Sturdy Joints From Fishes, Evidence Found in 400 Million-Year-Old Jawed Fish Evolution has ...

A fossil analysis suggests that the yunnanozoan, a wormlike fish that flourished around 520 million years ago, sported structures that were the precursors of the head and jaws of modern vertebrates.

The cranio-vertrebral joint in fish is like any other intervertebral joint. The head is not any more mobile on the spinal column than any other two vertebrae are on each other. Fish can’t move its ...

The silver spinyfin has an extraordinary diversity of rod photopigments, which researchers propose may allow it to see color in the deep, dark sea. After a year teaching an algorithm to differentiate ...