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, ...

A creepy fish with fingers on the end of its fins terrorized the oceans 380 million years ago. The 5ft-long, shark-like Elpistostege watsoni lurked in tropical lagoons and could be a missing link in ...

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 ...

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 ...