These cold-blooded vertebrate animals belong to the class Amphibia including over 6,200 species in three groups: caecilians (order Gymnophiona), frogs and toads (order Anura) and salamanders (order Caudata). Amphibians can live both in land and water.

5,185 Questions
Salamanders and Newts

Are salamanders lizards?

Nope, salamanders aren’t lizards—surprisingly, they aren’t even reptiles. They’re amphibians.

It’s understandable to mistake the slender, long-tailed, little-legged creatures for lizards, but they’re actually closer relatives to frogs. Take a look at them—you can kind of see it! Like frogs and other amphibians, salamander babies have gills and live in the water, then move to moist land as adults. That’s because their adult skin absorbs water but also loses it, so they need constant replenishment.

Lizards (and all reptiles) don’t need to live on moist land. While some are comfortable in the water, they can never breathe it, and their scaly skin prevents water loss.


What are examples of amphibians?

Some amphibians are : frogs, toads, salamanders, and newts.

  • African bullfrog, Pyxicephalus adspersus
  • Alligator Newt
  • Alpine Newt
  • American Bullfrog
  • American Toad
  • Australian Green Tree Frog (Litoria caerulea)
  • Axolotl
  • Blue-tailed Fire-bellied Newt
  • Burrowing Tree Frog
  • Caecilians
  • Cane Toad
  • Common Dusky Salamander
  • Couch's Spadefoot
  • Dumpy (White) Tree Frog
  • Dwarf Waterdog
  • Eastern Toad
  • Emperor Newt
  • Ensatina
  • European Fire-bellied Toad (Bombina bombina)
  • European Green Toad
  • European Tree Frog
  • Fire-belly Toad
  • Fire Salamander (Salamandra salamandra)
  • Fowler's Toad
  • Giant Marine Toad
  • Giant Salamander
  • Golden Mantella
  • Golden Poison Dart Frog
  • Golden toad, Bufo periglenes, extinct since 1989
  • Goliath Frog
  • Great crested newt, Triturus cristata
  • Greek Stream Frog, rana graeca
  • Green-and-black Poison Dart Frog
  • Green Tree frog
  • Grey Tree Frog
  • Hellbender
  • Horned Toad
  • Iberian Ribbed Newt
  • Ichthyostega, thought to be one of the earliest amphibians (Devonian)
  • Japanese giant salamander, Andrias japonicus
  • Leopard Frog
  • Marbled Reed Frog
  • Marbled Salamander
  • Marsh Frog
  • Mountain Chicken
  • Mudpuppy (Necturus maculosus)
  • PacMan Frog
  • Panamanian Golden Frog
  • Plains Leopard Frog
  • Pig Frog
  • Poison arrow/arrow poison frog, Dendrobates azureus, the genus Dendrobates contains very poisonous and very colorful frog species of South America
  • Puerto Rican Crested Toad
  • Rana Sylvatica (Alaskan wood frog)
  • Red-belled Newt
  • Red eyed Tree Frog
  • Spring Peeper
  • Strawberry Poison Dart Frog
  • Surinam Toad
  • Three-toed Amphiuma
  • Tiger Salamander
  • Tomato Frog
  • Vietnamese Moss Frog
  • Waxy Tree Frog
  • Western Lesser Siren
  • Western Toad
  • White's Tree Frog
  • Wood Frog
  • Wyoming Toad

There are more amphibians then even humans are aware of. Scientists are still finding new species. There are many species already and depending on the area or type depends where one would find a list.

There are over 6000 extant amphibian species. And note the fossil species too (like Ichthyostega).

There are three groups of amphibians; frogs (including toads) or Anura, caecilians or Gymnophionaand salamanders or Caudata.


Are polar bears amphibians?

No. Polar bears are mammals because they have fur, are warm-blooded and give birth to live young. Amphibians have none of the above traits.


What are some characteristics of amphibians?

  • They have smooth skin, have larvae, and lay eggs and mate in water.
  • Amphibians are members of the class Amphibia, subphylum Vertebrata, phylum Chordata. The class Amphibia includes frogs, toads, salamanders, newts and caecilians.
  • Amphibians are characterized by a glandular skin without external scales, by gills during development (and in adulthood in some), and by eggs that may have jelly coats but develop without formation of extraembryonic membranes such as the amnion.
  • Most amphibians also have four limbs. Limbs and lungs are adaptations for life on land; the limbs evolved from the ancestral fishes' lobed fins. The scales and amniote egg evolved by reptiles are further adaptations for life on land and distinguish reptiles from amphibians. Amphibians, such as frogs, toads, salamanders, newts, and gymnophiona, are cold-blooded animals that metamorphose from a juvenile, water-breathing form to an adult, air-breathing form. Typically, amphibians have four limbs. Unlike other land animals (amniotes), amphibians lay eggs in water, as their fish ancestors did. Amphibians are superficially similar to reptiles.
  • Amphibians are cold-blooded animals, meaning they do not have a constant body temperature but instead take on the temperature of their environment. They have moist, scaleless skin that absorbs water and oxygen, but that also makes them vulnerable to dehydration (loss of bodily fluids). Without moist conditions, their skin dries out and they die. Therefore, amphibians are most often found near ponds, marshlands, swamps, and other areas where freshwater is available. Some amphibians become inactive when conditions are unfavorable for survival. This period of inactivity is called estivation when it occurs during hot, dry weather and hibernation when it occurs in response to cold temperatures. Activity resumes when favorable conditions return.
  • The thin skin of amphibians contains many glands, among them poison glands that protect certain species against predators. The poison from the glands of the brightly colored poison-dart frog is particularly toxic and is used by South American Indians to coat the tips of their arrows. Some amphibians protect themselves from enemies by changing color to blend in with their surroundings.
  • Amphibians have moist skin and are ectotherms, meaning their body heat matches the heat of the environment around them. They must live in moist environments for reproductive and respiratory means, and they were the first tetrapods on land.
  • an amphibian can live on water or land
  • they have lungs (aside from some salamanders)
  • in their larvae for they have gills
  • has gills and lungs
  • moist and slimy skin
  • they are ectothermic (or cold blooded)
  • lay eggs(external fertilization)

Amphibians include animals such as frogs, caecilians, and salamanders. They are characterized as cold-blooded tetrapods ( four limbs ).Most Amphibians undergo metamorphosis from a juvenile water-breathing form to an adult air-breathing form.

Amphibians are ecological indicators.They live both in the water and on land.

For the purpose of reproduction most amphibians require fresh water.

Since they can live either on land or in water they must have both lungs and gills, or rudimentary gills. They don't have constant body temperature but have moist skin and their temperature is the same as the ambient temperature.

Amphibians, like frogs and salamanders, have moist skin and are ectotherms, meaning their body heat matches the heat of the environment around them. They do not have any scales, and they must live in moist environments for reproductive and respiratory means.

Amphibians, like frogs, toads, and salamanders, have moist skin and are ectotherms, meaning their body heat matches the heat of the environment around them. They don't have any scales, and they must live in moist environments for reproductive and respiratory means. Amphibians were the first tetrapods.

1.Scales are absent.

2.Gills and lungs are for respiration.

3.They have necessitating membrane.

4.They have three chambered heart.

5.They are cold blooded.

6.They lay eggs.

7.They live either on land or water.

The four characteristics of amphibians are characteristics any animal must have to be classified as an amphibian. These include: the animal must be a vertebrate and have a backbone, the animal spends much of its life in water as well as on land, the animal is cold blooded, and the animal does not have scales but have permeable skin. Animals that are amphibians also go through metamorphosis, as a frog goes from an egg to a tadpole to a frog.

1. Amphibians are cold blooded.

2. Amphibians larvae mature in water and breathe through gills.

3. Adult amphibians breathe through lungs and skin.

4. While adult amphibians spend part of their time on land, they still need to spend time in water due to the scaleless, moist nature of their skin. Without a water source they would become dehydrated and die.

There are many characteristics of a amphibians. The most common include being cold-blooded, having a back bone and live on both water and land.

10 Characteristics of Class Amphibian are given below:1) The representatives of class Amphibia thrive well both on land and in water i.e. amphibious.

2) Amphibians are cold-blooded or exothermic animals. Unlike warm-blooded animals, which regulate their body temperature internally, amphibians derive heat from outside their body.

3) The skin is smooth, thin, hairless, porous and rarely scaled. The skin contains both mucus glands and poison glands.

4) A bone endoskeleton with varying numbers of vertebrae; ribs present in some, absent or fused to vertebrae in others.

5) A smooth, thin, porous skin containing both mucus glands and poison glands.

6) Four limbs which may vary in size with the forelimbs of some being much smaller than the hind limbs; some are legless.

7) Limbs have varying numbers of digits and webbed feet are often present; no true nails or claws.

8) The mouth is usually large with small teeth in upper or both jaws; two nostrils open into the anterior part of the mouth cavity.

9) Respiration is accomplished either separately or in combination by lungs, skin, and gills; some larval types possess external gills and these may persist throughout life.

10) A three-chambered heart consisting of two atria and one ventricle.

1, can live under water breathing through skin.

2, adult can live on land as they have lungs.

3, moist soft skin.

4,eggs laid in water.

amphibians are layed by egg and can live on both land and water

What do axolotl eggs look like?

They are, in fact, very similar to Frog Spawn and are generally laid upon plants. They look like Brown/Black 'dots' coated with a clear membrane - though a lack of pigment in the egg would suggest that one parent was an Albino Axolotl. Sometimes, though, pigment appears later in the development.

The Difference Between

What is the difference between an amphibian and a reptile?

Reptiles and and amphibians are two different types of animals. though there are many similarities between these two types of animals. Major difference between reptiles and amphibians include the following.

  1. Different species of reptiles live on land, in water, or both on land and in water. However, all amphibians are born in water and spend early part of their lives in water in form of larvae. Through a process of metamorphosis the larvae of amphibians grow into adults which are quite different from the larvae. The adults usually live on land, however some may live on land as well as in water.
  2. All reptiles breathe only through lungs, and this includes juveniles. However, young amphibians breathe through gills. Adults breathe through lungs. Some adults may have gills also. In addition, amphibians breathe through openings in their skins and mouth.
  3. Reptiles have a scaly skins. Amphibians do not have scales on their skin. In general they have a smooth, moist body. Some amphibians have a rough leathery skin.
  4. Reptiles are generally bigger in size than amphibians.
  5. Reptiles include four groups of animals - lizards and snakes, turtles and tortoises, crocodilians, and tuatara. Amphibians include three groups of animals - frogs and toads, salamanders and caecillians.
  6. Amphibians undergo metamorphosis, meaning the juveniles are qute different in appearance and shape from the adult amphibians, and their bidy undergoes significant change. Young reptiles resemble smaller versions of their parents.

the environment reptiles live in dryer environments while amphibians live in wet environments
Respiration using lungs

The above is not strictly correct. Adult amphibians breathe using lungs. One of the main differences between amphibians and reptiles is that juvenile amphibians undergo metamorphosis, during which they change from using gills for respiration to using lungs.

Another major difference is that reptiles have scaly skin, while amphibians have moist skin, not scaly.
amphibians have dual life ... water and land while reptiles don't have
All amphibians start life in the water, and all reptiles start life on land. (short answer)
The primary difference is in the egg, reptiles lay thick shelled eggs that have an amnion protecting the embryo, this difference of having an amnion sharply separates reptiles, birds, and mammals from fish and amphibians.

Reptiles also have thick skin while amphibians have thin skin.

Reptiles sometimes have scales and amphibians usually have smooth skin, but some reptiles (particularly Crocodylians) do not have true scales, and some amphibians (particularly toads) have rough, warty skin.
An anfibian can live in water and on land. a reptile can't
Amphibians develop in water, and reptiles do not. Reptiles have scutes wich amphibians lack.
Reptiles have scales and Amphibians have smooth skin.

An animal is classed as a reptile if it:

Has scales;

Lays hard eggs instead of live young;

Doesn't suckle its young.

An amphibian:

Lives both on land and in water;

Lays soft eggs;

Has soft, damp skin.

The differences being the skin texture, habits and the eggs.

Reptiles have scales and Amphibians have smooth skin.

The difference between reptiles and amphibians is that reptiles have rough skin and amphibians have slimmy slippery skin.Reptiles are also different from amphibians because reptiles were here longer than amphibians.
amphibians have smooth and moist skin however reptiles have dry and scaly scales.
Reptiles begin their lives on land, whereas Amphibians begin their lives in water.
Amphibians are able to go both in water and land but reptiles stick to land
Amphibians can breathe under water while reptiles can't, I'm not for sure about this but that's my guess.
they aren't in the same group.
Reptiles and amphibians belong to the same Kingdom (Animalia) and Phylum (Chordata) but are different Classes altogether.

Reptiles most likely evolved from amphibians some 300 million years ago. They live on land, mostly, and breath air with lungs, though things like sea-snakes and alligators (Reptiles) do live in water. Reptiles lay eggs with a tough shell.

Amphibians are more water-dependent, and usually lay their eggs in water. Examples are frogs and salamanders.

Also, reptiles have scales. Very few amphibians have scale-like skin.

Although they share common ancestry (we all do, actually, all life on earth...), they are different groups of animals!
amphibians and reptiles are both same but the difference are amphibians spend thier time on water when they are young and when they are growing older spend thier time on land while reptiles thier bodies are covered with scale or plates
Reptiles and amphibians are rather different. Reptiles have dry, scaly skin, breathe through lungs, and are often found on land. In contrast, amphibians have scaleless, often slimy skin, are found in water before moving to land, and often can breathe without the use of lungs, or don't even have lungs.
Amphibians breathe through their skin and live on both land and in water. Reptiles have scaly skin and live mostly on land except for exceptions such as crocodiles, turtles and iguanas.
The difference between an amphibian and a reptile are the following:

  • reptiles don't have webbed feet, amphibians do
  • reptiles have hard scaly skin, amphibians have soft and slimy skin
  • amphibians live in water most of the time where as reptiles don't but other than that they are really close to being the same
  • amphibians are animals which live on both land and water and have lungs and also pores in there skin to breath through frog

Herepetology Herepetology
The main noticeable difference is their skin. Reptiles have thousands of overlapping scales loosely connected to each other. Amphibians have a breathable one-piece skin.
Stuffed Animals (toys)

Where do you buy an axolotl stuffed animal?

nowhere iknow of sells hem, you'll have to make one, there are patterns on the internet

Word Games

What are some reptiles with 8 letters in the name?


Guinness World Records
Biggest, Strongest, Fastest and Other Extremes

What is the world's largest amphibian?

The largest living amphibian is the Chinese Giant Salamander (Andrias davidianus). The maximum size of this river-dweller is 64 kg (140 lb) and 1.83 m (6 ft). Before aminotes became the dominant tetrapods, several giant amphibian-like tetrapods existed. The largest known was the crocodile-like Prionosuchus, which reached a length of 9 m (30 ft). Frogs (Anura). Easily the largest member of the largest order of amphibians is the African Goliath frog (Conraua goliath). The maximum size of this species is a weight of 3.8 kg (8.4 lb) and a snout-to-vent length of 35 cm (14 in). The largest of the toads is the Cane Toad. Caecilian (Gymnophiana). The largest of the worm-like caecilians is the Thomson's Caecilian (Caecilia thompsoni), which reaches a length of 1.5 m (5 ft) and can weigh up to about 1 kg (2.2 lb).

The largest amphibian in the world is the Chinese Giant Salamander (Andrias davidianus). They can grow as long as 180 cm (6 ft), although it is rare that they get that large nowadays, with normal specimens around 1.15 m (3.8 ft) in length.

The second-largest amphibian in the world is the Japanese Giant Salamander (Andrias japonicus), a very close relative of the Chinese Giant Salamander. This species can reach as large as 1.5 meters (5 ft).

The Chinese giant salamander is the largest amphibian in the world. They can weigh up to 65 pounds and nearly 6 feet in length.
It's amphibian. And its the Japanese Giant Salamander.
The largest amphibian in the world is the Chinese Giant Salamander (Andrias davidianus)

Care of Fish
Betta and Siamese Fighting Fish
Freshwater Aquariums

Can you put axolotl and betta fish in the same tank?

No, this isn't a good idea. The betta might nibble the axolotl's delicate gills, and a big axolotl could swallow a betta, but the most obvious reason why the two are incompatible is that they prefer very different water temperatures. Bettas are tropical fish that require relatively high temperatures of 25-30 degrees Celsius, whereas axolotls prefer their water cooler, around 15 degrees.


What is structure and function of the body covering of amphibians?

Skin is the body covering of amphibians. It is made up of the epidermis and the dermis. Mucus, other glands and a pigment layer are present in the dermis. The epidermis is stratified. The skin is permeable which means that it allows oxygen and water to pass. Some amphibians are able to peform up to 50% respiration through their skin. Their skin also makes them more susceptible to changes in their local ecosystem like pollutants.

They Also Feel Soft Sometimes!


Can you name some reptiles and amphibians?

Some reptiles include the following:









and Tuataras

Some extinct species of reptiles include dinosaurs and pterosaurs. Amphibians include the following animals:





and Caecillians


Why do snakes undergo the process of molting?

Because their skin doesn't grow with them like ours does. Periodically, they need to slough (shed) their old skin in order for their body to grow.


What is the body covering for an amphibian?

Amphibians do not have scales on their body and possess a slimy skin.

All amphibians have a covering of moist skin. They do not have scaly skin or warty skin: they have moist skin.

Amphibians are covered in skin with a protective mucous layer. The mucous can sometimes have poison. Other amphibians can breathe through their skin.

slimy skin

very thin skin, because amphibians can actually breathe through their skin and extract oxygen.
The skin of amphibians is thin and membranous, it consist basically of the same material as the human skin, but thinner.


How do amphibious animal respire?

lung, skin and gills.

by dinesh singh bhadouria

Similarities Between

What are the similarities between reptiles and amphibians?

they're both cold blooded

well they are vertebrates, also they both- besides the crocodile- have three chamber hearts.

That they both lay eggs and also they both don't have paws or hooves


What are the main features of an amphibian?

Amphibians are four-legged, cold-blooded vertebrates who generally spend part of their time on land. Their skin must be kept moist, so they live close to water. Amphibians do have lungs, but are also able to "breath" through their skin. They do not have amniotic eggs. Amniotic means that the sac that the embryo is in is not filled with serous fluid.

An amphibian starts its life as an aquatic animal, breathing under water. It changes, develops legs and the ability to breathe out of the water. By that time it looks like a small version of the terrestrial/land dwelling form of the amphibian.

Not all amphibians have slippery skin, are slimy and have webbed feet. For example California newts have a rough texture to their skin and their skin is dry.

  • Skeleton mostly bony, with varying number of vertebrae; ribs present in some, absent in others.
  • Body forms extremely varied - elongated trunk with distinct head, neck and tail to a compact, depressed body with a fused head and trunk and no intervening neck.
  • Usually four limbs although some are legless.
  • Skin smooth and moist with many glands, some of which may be poison glands; pigment cells common, no scales.
  • Mouth usually large with small teeth in upper or both jaws; two nostrils open into anterior part of mouth cavity.
  • Respiration by lungs (absent in some salamanders), skin and gills in some, either separately or in combination; external gills in the larval form and may persist through life in some.
  • Circulation with three-chambered heart, two atria and one ventricle, and a double circulation through the heart; skin abundantly supplied with blood vessels.
  • Ectothermal.
  • Excretory system of paired mesonephric kidneys; urea main nitrogenous waste.

A larval stage and an adult stage, and smooth, oxygen absorbing skin.

they can survive on land but their skin needs to be moist or they will die

they have eggs that are couverd in jelly ie. frogspawn

their young can't go on land eg. tadpoles

They spend most their time on land, they usually hatch eggs and they spend most their life on land. That's all I know I'm afraid!
they have gills and lungs, and can survive in water or land
smooth skin, metamorphosis, cold blooded.

Amphibians are ectothermic, tetrapod and vertebrates. They live within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Amphibians start out in the water as larva, go through metamorphosis, some rely on skin to breath as they have no lungs, and lay eggs.
an amphibian is born from eggs and has wet smooth skin sorry for such little info hope that helped a little.

What animals live on both land and water?

Amphibians live on both land and water. The examples are frog, toads, salamanders and newts etc. Some reptiles like alligators and crocodiles also live on land and in the water.


How do you train an axolotl?

I wish they could


Are amphibians cold or warm blooded?

An amphibian is cold blooded, which means it gets its body temperature from it's environment.

Warm blooded.

Marine Biology

Do amphibians live in fresh water?

They are all freshwater- there are no saltwater amphibians.

English to French

What is the name for axolotl in french?

French also uses the Nahuatl word axolotl to describe it.

Zoology or Animal Biology

What is an amphibian?

Amphibians are creatures which spend part of their life in water and part of their life on dry land.

Amphibians are one of the groups of vertebrates, and are characterized by being cold blooded and having moist skin, through which they can also absorb oxygen. They include frogs, toads, newts, salamanders (including axolotls) and caecilians, which all start their lives as eggs. They hatch out as tadpoles which breathe through gills and a spiracle. As they grow, they develop lungs and legs, and are able to leave the water and walk on land, apart from axolotls.

Amphibians are members of the class Aviva sub phylum Vertebrate phylum Chordate's The class Amphibian includes frogs, toads, salamanders, newts and Cacilia's Amphibians are characterized by a glandular skin without external scales, by gills during development (and in adulthood in some), and by eggs that may have jelly coats but develop without formation of extra embryonic membranes such as the amnion. Most amphibians also have four limbs. Limbs and lungs are adaptations for life on land; the limbs evolved from the ancestral fishes' lobed fins. The scales and amenity egg evolved by reptiles are further adaptations for life on land and distinguish reptiles from amphibians. Amphibians, such as frogs, toads, salamanders, newts, and Guamanian are coldblooded animals that metamorphose from a juvenile, vertebration form to an adult, airbrushing form. Typically, amphibians have four limbs. Unlike other land animals amenities amphibians lay eggs in water, as their fish ancestors did. Amphibians are superficially similar to reptiles. It is a coldblooded vertebrate (it has a backbone) e.g. frog, toad, newt.. A cold blooded animal that spends its life both on water and on land. A vertebrate,eg.frog

An amphibian is a vertebrate, which has a backbone. It lives both on land and in the water. (like frogs, turtles, alligator) an amphibian is an animal that lives near the water such as a frog amphibians are animals that breath from their lungs amphibians are animals that are cold blooded and can only survive in wet condition and moist conditions.


Why do frogs lay so many eggs at one time?

Frogs lay a lot of eggs because most of them will not survive. Some of the eggs will never develop and others will end up food for other animals. Out of the hundreds of eggs, only a fraction will make it to an adult frog.

Aquatic Mammals

What are the names of all animals and their young ones?

Lion- Cub Deer-Bamby Dog-Puppy Cat-Kitten


The young of a fox, bear, lion, wolf or other carnivorous mammal.


A young deer in its first year.


A young swan


A young sheep


A young hare in its first year.


A young horse or related animal.


The young of a horse


A young goose


A child or young person, a young goat


A young eagle


A young duck


A young dog


A young cow or bull. Also, the young of some other large mammals


A young cat. Also, the young of certain other animals, such as the rabbit and beaver

A young fox is a Kit


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