Tetrapods evolved from a finned organism that lived in the water. However, this ancestor was not like most of the fish we are familiar with today. Most animals we call fishes today are ray …

Several groups of tetrapods, such as the snakes and cetaceans, have lost some or all of their limbs. In addition, many tetrapods have returned to partially aquatic or fully aquatic lives …

Jul 1, 2013 · More than three centuries ago natural philosophers, and later anatomists, recognized a fundamental organization to the skeleton of tetrapod limbs. Composed of three …

Jan 23, 2021 · Our results support three stages of forelimb functional evolution: first, a “benthic fish” locomotor mode similar to the pectoral fin of extant lungfish, followed by a unique early …

Aug 21, 2021 · We review the methods, results, and controversies in the muscle reconstructions of early members of the amniote, mammalian, and lissamphibian lineages, including recent …

Oct 15, 2001 · Based on a review of tetrapod limb and fish fin development, we propose a genetic hypothesis for the origin of the autopodium. In tetrapods the genes Hoxa-11 and Hoxa-13 …

More than three centuries ago natural philosophers, and later anatomists, recognized a fundamental organiza-tion to the skeleton of tetrapod limbs. Composed of three segments, …

There's nothing magical about the number, yet five digits at the end of their limbs is a motif that runs through all the animals with four limbs, called tetrapods.

Mar 2, 2021 · To explore how limb bones developed in early tetrapods, the team harnessed synchrotron micro-computed tomography, a technique that uses a high-powered particle beam …

Dec 15, 2017 · Within Sarcopterygii, a group named tetrapodomorpha develop a partial distal limb pattern which lacks digits but includes a humerus, radius, and ulna. Early tetrapods like …