This early tetrapod from the side of the road in Clinton ... that early limbed animals were actually pretty much fish with limbs. NS: There's another important evolutionary point here.

Ancient fish had synovial joints, challenging the idea that flexible skeletons evolved on land. Fossils and modern fish show ...

Because all later land vertebrates, or tetrapods, can be traced back to a fish. This encompasses not only amphibians, reptiles and birds, but also mammals—humans included. Yet one mystery ...

The transition from these lobe-fins to the earliest tetrapods -- four-legged animals that walked on land -- has long been of intense interest to biologists. Many of the most telling fossils have ...

Recent research reveals that synovial joints originated in early jawed fish, reshaping our understanding of vertebrate skeletal evolution and movement.

Lobe-finned fishes like coelacanths are more closely related to tetrapods than to ray-finned fishes (Actinopterygii), which make up about 99% of the known fish species. Tetrapods include birds, ...