The difference between salamander and giant salamander

Salamanders are tailed amphibians, similar in shape to lizards, but they have no scales on the surface, and they are also good ornamental animals. The salamanders are known as baby fish, mermaid, child fish and so on. They are the largest and most precious amphibians in the world. Their cries sound like babies' cries, so people call them "baby fish". Let's take a look at the difference between salamanders and giant salamanders.

The difference of families and genera between salamander and giant salamander

1. Salamanders: salamanders are amphibians of the animal kingdom, phylum Chordata, subphylum vertebrates, amphibians, amphibians, caudates, salamanders and salamanders.

2. Giant salamander: giant salamander is amphibian of kingdom animal, phylum chordate, subphylum vertebrate, amphibia, subclass glide, cauda, suborder Cryptobranchidae, family Cryptobranchidae, and giant salamander.

Morphological difference between salamander and giant salamander

1. Salamander: the salamander is composed of head, neck, torso, limbs and tail, with a total body length of 61mm to 155mm, flat head, smooth skin with verruca, weak ridge, small and thick tongue, oval shape, front and back connected to the mucous membrane of the bottom of the mouth, weak limbs, fingers and toes without webbed, tail pole flattened, male anal hypertrophy, anal fissure larger, female anal eminence, anal fissure short, neck not obvious, torso flatter. The limbs are more developed, with four fingers of the forelimb, five toes of the hindlimb, no web between the fingers (toes), and the tail is flat and long.

2. Giant salamander: the giant salamander is the largest of the amphibians, with a total length of 1 meter or more, with a flat head, a blunt round mouth, an underdeveloped eye, no eyelids, a flattened front of the body and a flattened tail gradually turning to a lateral flatten. there are obvious skin folds on both sides of the body, short and flat limbs, four fingers and toes, micro-webbed, round tail, fins up and down the tail.

Differences in feeding habits between salamanders and giant salamander

1. Salamanders: salamanders live in and near hilly swamp puddles, ponds or rice fields and feed mainly on insects, worms, snails and some small animals, including their own kind. Like other amphibians, they rely on the skin to absorb water, so they need a moist living environment, which will go into hibernation after minus zero degrees Celsius.

2. Giant salamander: the giant salamander is ferocious and carnivorous. It feeds on aquatic insects, fish, crabs, shrimp, frogs, snakes, soft-shelled turtles, rats and birds. Its teeth can not be chewed, but open its mouth to swallow the food whole, and then slowly digest it in the stomach.

Toxicity difference between salamander and giant salamander

1. Salamanders: the tiny glands of salamanders also contain a deadly bacterium, which can be used to produce a toxin called tetrodotoxin. When the salamander is attacked, it will immediately secrete this deadly neurotoxin. Let the opponent can not eat, carry around.

2. Giant salamander: the giant salamander is non-toxic, and the living environment is unique, generally in the intermountain streams, rivers and lakes with fast currents, cool water quality, lush water plants, stone crevices and caves, and sometimes move between tree roots or lodging tree trunks on the shore, and choose to dwell in caves at the beach mouth with reflux, and each cave generally has only one.