A trove of fossils in China, unearthed in rock dating back some 436 million years, have revealed for the first time that the mysterious galeaspids, a jawless freshwater fish, possessed paired fins. A ...

A "miniature alligator" dating back more than 375 million years is a "missing link" in evolution, according to scientists. The four-legged creature was among the first to venture onto land—after ...

Skates are cartilaginous fish that can flourish in benthic ecosystems thanks to their wing-like pectoral fins. This unique trait, however, remains unknown on a molecular level. Where did these ...

Positive static allometry is a scaling relationship where the relative size of traits covaries with adult body size. Traditionally, positive allometry is thought to result from either altered ...

It is well known that predators can induce morphological changes in some fish: individuals exposed to predation cues increase body depth and the length of spines. We hypothesize that these structures ...

To escape predators beneath the waves, a flying fish can shoot out of the water and glide long distances because its paired pectoral and pelvic fins, longer and more rigid than those of other fish, ...

The discovery, by an international team, led by Min Zhu of the Institute of Vertebrate Palaeontology and Palaeoanthropology, Bejiing and Professor Philip Donoghue from the University of Bristol’s ...