At more than 6,000 pounds, the fish—found dead off the Azores—weighs as much as a white rhino.

We probably inherited our joints from… a fish Cartilaginous fish form the same style of joint that we do, while jawless fish don't.

The circulatory system consists of one heart, five liters of blood, and approximately 96,000 kilometers of blood vessels, responsible for transporting nutrients and waste throughout the body ...

PercAssist, Inc., a medical device company developing innovative technology for extravascular / extracardiac Mechanical Circulatory Support to provide ...

What’s new: The number of bony marine fish species at risk of extinction could be five times higher than previously estimated by conservation scientists, a recent study suggests. What the study ...

Bony fish have three otoliths, one of which can be cut in half to find out the fish's age. The stone has rings, like the rings on a tree.

The circulatory system, also known as the cardiovascular system, keeps blood pumping and flowing throughout our bodies, delivering important nutrients and oxygen to where they are needed and ...

Your circulatory or cardiovascular system serves a vital function by delivering oxygen and nutrients to all the organs and tissues of your body. Learn more about how the circulatory system works ...

The armor of armored fish started out as part of the nervous system Cells from the developing spinal cord make the sturgeon's bony, armored plates.

How did genes related to walking first evolve? The little skate (Leucoraja erinacea) is a cartilaginous fish related to rays and sharks (as opposed to bony fish, including sarcopterygians).

They found the ancient fish to be approximately 2.7 meters long, making it the largest known bony fish from the Devonian, and estimate the fish lived approximately 350 million years ago.

A 319-million-year-old fossilized fish, which revealed the "oldest example of a well-preserved vertebrate brain," offers new insights into the evolution of early bony fish, researchers found in a ...