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 ...

The alternative text for this image may have been generated using AI. Figure 2: Fin ray bending resulted in increased activity of the pectoral fin nerves. The alternative text for this image may have ...

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 ...

Research on fossilized fish from the late Devonian period, roughly 375 million years ago, details the evolution of fins as they began to transition into limbs fit for walking on land. Much of the ...

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 ...

To answer how animals made the transition from sea to land, scientists have traditionally looked to the fossil record. But in the past 30 years, scientists have searched for changes in genes that can ...

When tetrapods (four-limbed vertebrates) began to move from water to land roughly 390 million years ago it set in motion the rise of lizards, birds, mammals, and all land animals that exist today, ...

Pretend for a moment, Barthelat explained, that fish fins are made up entirely of collagen. They could bend easily, but wouldn't give fish much traction in the water because hydrodynamic forces would ...

Each time your fingers curl around an object, you are using a structure shaped over hundreds of millions of years. Human hands, like all vertebrate limbs, have a clear top and bottom: a palm, its ...

To answer how animals made the transition from sea to land, scientists have traditionally looked to the fossil record. But in the past 30 years, scientists have searched for changes in genes that can ...