Figure 1: Nerve staining in the pectoral fin rays. Figure 2: Fin ray bending resulted in increased activity of the pectoral fin nerves. Figure 3: Nerve activity reflected the speed of fin ray ...

The human fingertip is a finely tuned sensory machine, and even slight touches convey a great deal of information about our physical environment. It turns out, some fish use their pectoral fins in ...

Limbs can be incredibly useful. Whether it’s the wing of a bat, the elongated leg of a hopping frog or our own grasping arms, limbs have been adapted to all sorts of ecosystems and functions through ...

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 ...

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 ...

Scientists use CRISPR to show how genes that control growth at the end of fish fins play the same role in fingers and toes. All vertebrates have the same basic body plan: head, spine, four appendages.