A study into the muscle development of several different fish has given insights into the genetic leap that set the scene for the evolution of hind legs in terrestrial animals. This innovation gave ...

The discovery of new fossil materials from the ancient fish species Tiktaalik roseae has revealed a key link in the evolution of hind limbs. The newly described, well-preserved pelves and partial ...

For the first time, biologists have described the evolution of the size of a female trait which males use to choose a partner. The research shows that male cichlid fish prefer females with a larger ...

The closest known relative of the ancestors of limbed animals such as humans likely evolved the foundation for rear legs even before the move to land, researchers say. This ancestor may have even been ...

The discovery of new fossil materials from the ancient fish species Tiktaalik roseae has revealed a key link in the evolution of hind limbs. The newly described, well-preserved pelves and partial ...

Priocharax rex, a minuscule species just 0.8 inches long, has a bizarre organ that scientists have never seen before: a round, wing-like flap of skin between its pelvic fins. This fish was discovered ...

The closest known relative of the ancestors of limbed animals such as humans probably evolved the foundation for rear legs even before the move to land, researchers say. This ancestor may have even ...

A creature that lived 375 million years ago and is thought to have been the first fish to have made the transition to land sported large pelvic bones in addition to its leg-like front fins, new ...

Stanford scientists studying the mysterious loss of spiny fins in a widespread species of small fish have discovered how a single gene played a crucial role in their rapid evolution. The work sheds ...

The cave angel fish was first observed walking on rocks in a Thailand cave four years ago and now, scientists have identified nearly a dozen species of fish with the same ability. The team analyzed ...

For the first time, biologists have described the evolution of the size of a female trait which males use to choose a partner. The research, published in the open access journal BMC Evolutionary ...