(PhysOrg.com) -- History has shown that many invertebrates are able to regenerate lost limbs. Rare however, are animals with backbones that are able to do so, and when they do exist, they are usually ...

The polypterids (bichirs and ropefish) are extant basal actinopterygian (ray-finned) fishes that breathe air and share similarities with extant lobe-finned sarcopterygians (lungfishes and tetrapods) ...

Editor’s note: This story is part of a year-long series commemorating the 10-year anniversary of the Marine Biological Laboratory's affiliation with the University of Chicago. “Inelegant” is a ...

In 2011, Jeff Graham, a popular and highly respected physiologist at Scripps Institution of Oceanography at UC San Diego, submitted a paper to a major scientific journal describing the peculiar ...

There have been fish and fossils found with leg-like fins, but now scientists have raised such animals themselves. Three researchers raised a fish called Polypterus, also known as Bichir, to learn ...

Science marches on. Sometimes, it does so on fins. Research conducted at McGill University studied the effect of a lifetime of walking on a certain type of fish. Yes, fish.

The little polypterus isn’t pretty, but it has a special skill. Equipped with both gills and lungs, it can live on land for a long time — up to two years You can save this article by registering for ...