Fish
A fish is any member of a paraphyletic group of organisms that consist of all gill-bearing aquatic craniate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups. Most fish are ectothermic ("cold-blooded"), allowing their body temperatures to vary as ambient temperatures change, though some of the large active swimmers like white shark and tuna can hold a higher core temperature. Fish are abundant in most bodies of water. They can be found in nearly all aquatic environments, from high mountain streams (e.g., char and gudgeon) to the abyssal and even hadal depths of the deepest oceans (e.g., gulpers and anglerfish). At 32,000 species, fish exhibit greater species diversity than any other group of vertebrates.
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Famous quotes containing the word fish:
“Thou stately stream that with the swelling tide
‘Gainst London walls incessantly dost beat,
Thou Thames, I say, where barge and boat doth ride,
And snow-white swans do fish for needful meat:”
—George Turberville (1821–1873)
“I close my eyes and suck you in like a fire.
I grow. I grow. I’m fattening out.
I’m a kid in a rowboat and you’re the sea,
the salt, you’re every fish of importance.”
—Anne Sexton (1928–1974)
“Everything seems beautiful because you don’t understand. Those flying fish, they’re not leaping for joy, they’re jumping in terror. Bigger fish want to eat them. That luminous water, it takes its gleam from millions of tiny dead bodies, the glitter of putrescence. There’s no beauty here, only death and decay.”
—Curtis Siodmak (1902–1988)