Reptile vs. Fish — What's the Difference?

Any of a class of cold-blooded, air-breathing vertebrates.

Covered with scales and equipped with fins.

Includes snakes, lizards, crocodiles, and turtles.

Live in both freshwater and marine environments.

Often found in desert and tropical environments.

Can be cold-blooded or partially warm-blooded.

Reptiles, as most commonly defined, are the animals in the class Reptilia , a paraphyletic grouping comprising all amniotes except synapsids (mammals and their extinct relatives) and Aves (birds). The class comprises turtles, crocodilians, snakes, amphisbaenians, lizards, tuatara, and their extinct relatives.

Fish are aquatic, craniate, gill-bearing 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.

Any of various usually cold-blooded egg-laying vertebrates often grouped in the class Reptilia, having dry skin covered with scales or horny plates and breathing by means of lungs, and including the snakes, lizards, crocodilians, and turtles. In some classification systems, birds are considered to be reptiles because they are descended from reptilian dinosaurs.

A limbless cold-blooded vertebrate animal with gills and fins living wholly in water

A person regarded as contemptible or obsequious.

A person who is strange in a specified way

(strictly) A cold-blooded vertebrate of the class Reptilia; an amniote that is neither a synapsid nor a bird; excludes amphibians.

A flat plate that is fixed on a beam or across a joint in order to give additional strength.

A reptile or amphibian.

Catch or try to catch fish, typically by using a net or hook and line

(figuratively) A mean or grovelling person.

Search by groping or feeling for something concealed

Creeping; moving on the belly, or by means of small and short legs.

Mend or strengthen with a fish.

Grovelling; low; vulgar.

Join (rails in a railway track) with a fishplate.

Creeping; moving on the belly, or by means of small and short legs.

Any of numerous cold-blooded aquatic vertebrates characteristically having fins, gills, and a streamlined body and including the bony fishes, such as catfishes and tunas, and the cartilaginous fishes, such as sharks and rays.

Hence: Groveling; low; vulgar; as, a reptile race or crew; reptile vices.

Any of various jawless aquatic craniates, including the lampreys and hagfishes.

An animal that crawls, or moves on its belly, as snakes,, or by means of small, short legs, as lizards, and the like.

The flesh of such animals used as food.

One of the Reptilia, or one of the Amphibia.

(Informal) A person, especially one considered deficient in something

A groveling or very mean person.

To catch or try to catch fish.

Any cold-blooded vertebrate of the class Reptilia including tortoises turtles snakes lizards alligators crocodiles and extinct forms

To look for something by feeling one's way; grope

Characterized by scaly skin and laying shelled eggs on land.

To seek something in a sly or indirect way

Reptiles regulate body temperature externally.

To catch or try to catch (fish).

To catch or try to catch fish in

To catch or pull as if fishing

(countable) A cold-blooded vertebrate animal that lives in water, moving with the help of fins and breathing with gills.

Any animal (or any vertebrate) that lives exclusively in water.

(Newfoundland) Cod; codfish.

(uncountable) The flesh of the fish used as food.

(uncountable) A card game in which the object is to obtain cards in pairs or sets of four (depending on the variation), by asking the other players for cards of a particular rank.

A woman.

An easy victim for swindling.

A bad poker player. Compare shark (a good poker player).

A makeshift overlapping longitudinal brace, originally shaped roughly like a fish, used to temporarily repair or extend a spar or mast of a ship.

(nautical) A purchase used to fish the anchor.

A torpedo self-propelled explosive device.

(zoology) A paraphyletic grouping of the following extant taxonomic groups:

Class Myxini, the hagfish (no vertebrae)

Class Petromyzontida, the lampreys (no jaw)

Within infraphylum Gnathostomata (jawed vertebrates (also including Tetrapoda))

(cartomancy) The thirty-fourth Lenormand card.

(prison slang) A new (usually vulnerable) prisoner.

(obsolete) A counter, used in various games.

(intransitive) To hunt fish or other aquatic animals in a body of water.

(transitive) To search (a body of water) for something other than fish.

To use as bait when fishing.

(intransitive) To (attempt to) find or get hold of an object by searching among other objects.

To talk to people in an attempt to get them to say something, or seek to obtain something by artifice.

Of a batsman, to attempt to hit a ball outside off stump and miss it.

To repair (a spar or mast) by fastening a beam or other long object (often called a fish) over the damaged part (see Noun above).

To hoist the flukes of.

A counter, used in various games.

A name loosely applied in popular usage to many animals of diverse characteristics, living in the water.

An oviparous, vertebrate animal usually having fins and a covering scales or plates. It breathes by means of gills, and lives almost entirely in the water. See Pisces.

The twelfth sign of the zodiac; Pisces.

The flesh of fish, used as food.

A purchase used to fish the anchor.

To attempt to catch fish; to be employed in taking fish, by any means, as by angling or drawing a net.

To seek to obtain by artifice, or indirectly to seek to draw forth; as, to fish for compliments.

To catch; to draw out or up; as, to fish up an anchor.

To search by raking or sweeping.

To try with a fishing rod; to catch fish in; as, to fish a stream.

Any of various mostly cold-blooded aquatic vertebrates usually having scales and breathing through gills;

The flesh of fish used as food;

(astrology) a person who is born while the sun is in Pisces

The twelfth sign of the zodiac; the sun is in this sign from about February 19 to March 20

Seek indirectly;

Catch or try to catch fish or shellfish;

Aquatic vertebrates that breathe through gills.

Exhibit a wide variety of reproductive strategies.

Reptiles can live in a range of environments from deserts to forests and even aquatic settings.

Fish breathe using gills, which extract oxygen from water.

Yes, many fish species, like trout, thrive in cold water.

Most fish lay eggs, but some species are live-bearers.

Reptiles are vertebrates with scaly skin, lungs for breathing, and typically lay eggs.

Yes, all reptiles are ectothermic, meaning their body temperature depends on external sources.

Fish exhibit diverse reproductive methods, including spawning, mouthbrooding, and nest building.

Common characteristics include scaly skin, ectothermic metabolism, and lung-based respiration.

Fish scales are mainly for reducing friction, while reptile scales provide protection and prevent dehydration.

Reptiles bask in the sun or seek shade to regulate their body temperature.

Some reptiles, like sea turtles and marine iguanas, are adapted to marine life.