Fish

Fish are aquatic vertebrate animalsLevinton, Jeffrey S. (2014) "Marine Vertebrates and Other Nekton". Marine Biology: Function, Biodiversity, Ecology. 4th ed. Oxford: Oxford University Press, pp. 162–197.Castro, Peter and Huber, Michael. (2013) "Marine Fishes". Marine Biology. 9th ed. New York: McGraw-Hill, pp. 150–176. commonly defined by the presence of a ,"Fish". Merriam-Webster.com Dictionary. Merriam-Webster, Inc. Accessed 18 January 2023."A Fisheye View of the Tree of Life – What is a fish?". Understanding Evolution. University of California Museum of Paleontology. Accessed 18 January 2023. fins for locomotion in place of limbs,"What is a Fish?". Exploring Our Fluid Earth. University of Hawaii at Mānoa. Accessed 18 January 2023. and s to breathe underwater.
Of all vertebrates, they are the oldest, most structurally simple, and most wide-ranging in terms of species, with 24,000 to at least 30,000 known to humans. Because of their ubiquity to marine ecosystems, they are the most economically significant aquatic life-form and are a vital food source for millions of people around the world. Despite challenges to classifying such a diverse group, they are traditionally divided into , which have skeletons made of cartilage; , which have true bony skeletons; and , which are the most primitive of fishes but are rejected as vertebrates by some scientists. Sharks are a prominent group of cartilaginous fishes.
==History==
In the 870s, Eivor Varinsdottir caught a variety of fish in order to fulfill requests for the Fishing Hut at Ravensthorpe and to give as offerings at certain altars, such as Nymdesfelda and Elisdon Altar.Assassin's Creed: Valhalla
==Species==
===Cartilaginous fishes===
AC4DB - Bull Shark.png|link=Bull shark|Bull shark
ACOD manta ray.jpg|link=Manta ray|Giant oceanic manta ray
ACOd-shark.jpg|link=Great white shark|Great white shark
AC4DB - Hammerhead Shark.png|link=Hammerhead shark|Hammerhead shark
===Bony fishes===
Wiki noimage.jpg|Acadian redfish
Wiki noimage.jpg|Allis Shad
Wiki noimage.jpg|Arctic char
BonitoACP.png|Atlantic bonito
Wiki noimage.jpg|Atlantic Cod
GoliathGrouperACP.png|Atlantic goliath grouper
Wiki noimage.jpg|Atlantic Halibut
Wiki noimage.jpg|Atlantic Mackerel
Wiki noimage.jpg|Atlantic Pollock
Wiki noimage.jpg|Atlantic salmon
Wiki noimage.jpg|Atlantic sturgeon
TrumpetfishACP.png|Atlantic trumpetfish
BlueTangACP.png|Blue Tang
Wiki noimage.jpg|Bream
Wiki noimage.jpg|Brown bullhead
Wiki noimage.jpg|Brown trout
Wiki noimage.jpg|Burbot
Wiki noimage.jpg|European Eel
Wiki noimage.jpg|Grey trout
Wiki noimage.jpg|Haddock
HoneycombCowfishACP.png|Honeycomb cowfish
AC4DB - Moray Eel.png|link=Moray eel|Green moray Eel
NassauGrouperACP.png|Nassau grouper
OceanSurgeonfishACP.png|Ocean Surgeon
ACOD Fresh Fish.png|Sardine
SergeantMajorACP.png|Sergeant Major
Wiki noimage.jpg|Silver Hake
ACO Swordfish.png|link=Swordfish (sword)|Swordfish
Wiki noimage.jpg|Turbot Flatfish
Wiki noimage.jpg|Yellow perch
==Appearances==
*Assassin's Creed III
*Assassin's Creed IV: Black Flag
*Assassin's Creed: Pirates
*Assassin's Creed: Rogue
*Assassin's Creed: Odyssey
*Echoes of History 
*Assassin's Creed: Valhalla
**Dawn of Ragnarök
*Assassin's Creed: Mirage
*Assassin's Creed: Nexus VR 
*Assassin's Creed: Jade
==References==
Category:Animals