A few hundred million years ago, fish fins morphed into the arms and legs of terrestrial animals, according to evolutionary theory. So, you’d think science would know just about everything about them ...

New research on the fin development of the Australian lungfis elucidates how fins evolved into limbs with hands with digits. The main finding is that in lungfish a primitive hand is already present, ...

A 400 million-year-old fossil of a coelacanth fin, the first finding of its kind, fills a shrinking evolutionary gap between fins and limbs. The fossil shows that the ancestral pattern of lobed fins ...

Although present in more than 6,000 living species of fish, the adipose fin, a small appendage that lies between the dorsal fin and tail, has no clear function and is thought to be vestigial. A new ...

A study of catsharks reveals how alterations in the expression and function of certain genes in limb buds underlie the evolution of fish fins to limbs. The findings are reported by researchers from ...

A study uncovers fresh insights into the structural changes that enabled fins to give rise to limbs during vertebrate evolution. The transformation of fins into limbs is marked by the appearance of ...

Females love males with big dorsal fins, but the appendages first evolved for males to fight other males To female molly and Limia fish, nothing is hotter than a male with a large dorsal fin. But ...