What does amphibian mean? Are there any amphibians that live in water all their lives?

Amphibians are the most primitive terrestrial vertebrates. They have both new traits adapted to life on land and traits adapted to life in water inherited from their fish ancestors. Are there amphibians that live in water their entire lives? What is the largest existing amphibian in the world? Take your time to read it!

Contents of this article

1. What does amphibian mean?

2. Are there any amphibians that live in water all their lives?

3. The largest amphibian in the world is

What does amphibian mean?

Amphibians mean vertebrates with four limbs. Amphibians are the most primitive terrestrial vertebrates. They have both new traits adapted to terrestrial life and traits adapted to aquatic life inherited from their fish ancestors.

Amphibians can crawl onto land, but they cannot live without water for their entire lives. Because they can live in two places, they are called amphibians. Amphibians are a transitional type of vertebrates from aquatic to terrestrial. There are about 7,000 species of amphibians. Amphibians are cold-blooded animals. Amphibians evolved from fish. Long-term species evolution has enabled amphibians to be active on land and swim in water. Compared with other species in the animal kingdom, there are fewer species of amphibians on Earth. There are currently about 4,350 officially confirmed species, divided into three orders: Apoda, Anura, and Caudata.

Are there any amphibians that live their entire lives in water?

Yes, some species remain in the larval form throughout their lives and can live in water all their lives, such as the cave salamanders endemic to North America.

The family Gigantodontidae is a family of the order Caudata. Gigantodontidae has two genera and four species, native to the northwestern United States. Similar to the Ambystoma, Gigantodonts also burrow underground and only return to the water during the breeding season. They sometimes remain in larval form throughout their lives, but Gigantodonts prefer to lay their eggs in mountain streams while Ambystoma prefers to lay their eggs in still water. Gigantodonts and Tiger Salamanders are both the largest terrestrial salamanders.

The largest amphibian in the world is

The giant salamander belongs to the family Cryptobrachium, genus Megalobrama, and is the largest and most precious amphibian in the world. Its cry sounds like a baby crying, so people also call it "baby fish". The giant salamander is commonly known as "big pepper fish" because it has the taste of pepper.

There are two species in the genus Giant Salamander, namely the Japanese Giant Salamander, which is found in the southern part of Honshu Island, Shikoku and Kyushu Island in Japan; the other is the Chinese Giant Salamander, which is mainly distributed in the Yangtze River Basin and the tributaries of the middle and lower reaches of the Yellow River and the Pearl River in China; this salamander is widely distributed and numerous, but due to the decline in economic value and environmental quality, the number of wild populations is very small. During the day, they often hide in caves with whirling water, one cave and one tail. They mainly hunt at night, often waiting among the rocks at the beach, and when they find food passing by, they open their mouths wide and swallow it whole. The giant salamander mainly feeds on frogs, fish, snakes, shrimps and aquatic insects. It has a strong ability to withstand hunger and will not starve to death if it is kept in cool water for two or three years without eating.