Comparative anatomy Evolution of paired fins Ichthyolith Convergent evolution in fish List of fossil sites Lists of prehistoric fish List of years in paleontology...

The evolution of fishes took place over a timeline which spans the Cambrian to the Cenozoic, including during that time in particular the Devonian, which...

example of convergent evolution. The use of fins for the propulsion of aquatic animals can be remarkably effective. It has been calculated that some fish can...

ichthyosaurs, have secondarily acquired a fish-like body shape through convergent evolution. On the other hand, Fishes of the World comments that "it is increasingly...

fish List of placoderms List of acanthodians List of prehistoric cartilaginous fish List of prehistoric bony fish List of sarcopterygians Evolution of...

suggests that many fish genera independently evolved amphibious traits, a process known as convergent evolution. These fish use a range of methods for land...

the midline of the body. For every type of fin, there are a number of fish species in which this particular fin has been lost during evolution (e.g. pelvic...

aquatic salamanders, and caecilians. Ampullae of Lorenzini were lost early in the evolution of bony fishes and tetrapods. Where electroreception does occur...

(ptérux) 'wing, fins'), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that comprise over 50% of living vertebrate species...

The evolution of tetrapods began about 400 million years ago in the Devonian Period with the earliest tetrapods evolved from lobe-finned fishes. Tetrapods...

walking fish, or ambulatory fish, is a fish that is able to travel over land for extended periods of time. Some other modes of non-standard fish locomotion...

Most bony fishes have two sets of jaws made mainly of bone. The primary oral jaws open and close the mouth, and a second set of pharyngeal jaws are positioned...

"Comparative study of cartilaginous fish divulges insights into the early evolution of primary, secondary and mucosal lymphoid tissue architecture". Fish & Shellfish...

(ostéon) 'bone' and ἰχθύς (ikhthús) 'fish'), also known as osteichthyans or commonly referred to as the bony fish, is a diverse clade of vertebrate animals that have...

descent of tetrapods from lobe-finned fish, despite the former being assigned a higher taxonomic rank. Evolution of lobe-finned fishes Lobe-finned fishes and...

(1981). "The Evolution of Parental Care in Fishes, with reference to Darwin's rule of male sexual selection". Environmental Biology of Fishes. 6 (2): 223–251...

Fish anatomy is the study of the form or morphology of fish. It can be contrasted with fish physiology, which is the study of how the component parts...

diverse forms; the evolution of plants; the evolution of fish, arthropods and molluscs; the terrestrial colonization and evolution of insects, chelicerates...

Chimaeras are cartilaginous fish in the order Chimaeriformes (/kɪˈmɛrɪfɔːrmiːz/), known informally as ghost sharks, rat fish (not to be confused with rattails)...

or jawless fish is a paraphyletic infraphylum of animals in the subphylum Vertebrata of the phylum Chordata, characterized by the lack of jaws. The group...

(ikhthús) 'fish') is a class of jawed fish that contains the cartilaginous fish or chondrichthyans, which all have skeletons primarily composed of cartilage...

claspers in cartilaginous fishes. The similarities between the structures has been revealed to be an example of convergent evolution. While the claspers in...

on the back of most marine and freshwater vertebrates. Dorsal fins have evolved independently several times through convergent evolution adapting to marine...

provided as an overview of and topical guide to evolution: In biology, evolution is change in the heritable characteristics of biological organisms over...

Deep-sea fish are fish that live in the darkness below the sunlit surface waters, that is below the epipelagic or photic zone of the sea. The lanternfish...

Previously, the evolution of gills was thought to have occurred through two diverging lines: gills formed from the endoderm, as seen in jawless fish species,...

in the evolution of fish, some of the sensory organs of the lateral line were modified to function as the electroreceptors called ampullae of Lorenzini...

Convergent evolution is the independent evolution of similar features in species of different periods or epochs in time. Convergent evolution creates analogous...

explain the evolution of semelparity because it would be extremely difficult to return to the ocean. A noticeable difference between semelparous fish and iteroparous...

Evolution is the change in the heritable characteristics of biological populations over successive generations. It occurs when evolutionary processes...