There are about 28,000 species of bony fishes — the largest taxonomic group of vertebrates — and they have been around for a very long time (over 400 million years). So it’s no surprise that they have ...

Amphibious fish have evolved a remarkable suite of locomotory strategies that enable them to navigate both aquatic and terrestrial environments. These species exhibit a range of adaptations—from ...

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, ...

Parakneria thysi are particularly vulnerable to extinction, especially in the face of human activities such as overfishing.

An ancient fish sported something like fingers that were the precursors to our own digits, according to an analysis of a new fossil skeleton. "It's really the last piece of evidence to say fingers are ...

Many fish species evolved parts of their fins into sharp, spiny, needle-like elements -- called fin spines -- that function to protect the fish against predators. Such spines have evolved ...

Cartoons that illustrate evolution depict early vertebrates generating primordial limbs as they move onto land for the first time. But new findings indicate that some of these first ambulatory ...

Dec. 31 (UPI) --Before early marine species could make the transition to land, they had to develop tools for getting around out of the water. They needed limbs. Now, thanks to the discovery and study ...

Walking is a lot more complicated than putting one foot in front of the other. For that to happen, motor neurons in the brain and spinal cord must instantaneously coordinate the muscles you need to ...