(Phys.org) —In a major evolutionary discovery, Flinders University palaeontologist Professor John Long (pictured) has found evidence to show that four-legged animals first developed the ability to ...

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 ...

A South African fish has given scientists a glimpse of exactly how our ancestors took their first steps on land. Researchers have struggled to understand how ancient fish used their bodies and fins in ...

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) ...

Full limb regeneration is a property that seems to be restricted to urodele amphibians, Here we found that Polypterus, the most basal living ray-finned fish, regenerates its pectoral lobed fins with a ...

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 ...

The 100-year-old mystery surrounding how four-legged animals developed the ability to breathe air has finally been solved. Scientists claim the ability was passed down by ancient Gogonasus - a group ...

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 ...