Why the Chinese giant salamander is Critically Endangered

Here is the puzzle at the heart of the Chinese giant salamander (Andrias davidianus). A 2022 paper in Zoological Research says these animals are Critically Endangered in the wild even though millions are kept on farms. If you counted heads in a farm shed, the species would look fine. Counting the right heads tells a different story.

The animal itself is a record-chaser. The Animal Diversity Web, a University of Michigan database, reports individuals up to 1.8 meters (almost 6 feet) long and calls it the largest living amphibian, a title that researchers now argue about. It lives in mountain streams, hunts by ambush and sees poorly. The threats named in our sources are human ones: demand for its meat, the farms built to supply that demand, and the disease and genetic mixing that come with them.

This article follows the conservation story: how big the animal gets, why one name may cover several species, what threatens it, how scientists count an animal that hides, and what experts recommend. Many numbers come from a single source. We say so each time.

Meet the giant

All of those figures come from the Animal Diversity Web, a single source, and the title of largest amphibian is not settled, as the next section shows. The same source says the male guards the eggs and the den, fans the eggs with his tail to increase water flow, and eats unfertilized and water-mold-infected eggs. It adds that this care prevents the eggs from becoming infected by water mold. It also says the animal feeds by suction, which is as direct as it sounds. Wild animals this size are best watched from a distance, and this article is not a guide to handling them.

One name, several species?

For years Andrias davidianus was treated as one species spread across China. DNA work has challenged that. A 2018 paper by Yan and colleagues reports at least five species-level lineages. A 2022 paper writes of five to eight genetically distinct evolutionary species. A 2019 paper by Samuel Turvey and colleagues mentions seven distinct lineages from an earlier study, then runs its own analysis on museum specimens and late 20th-century samples, including partial or near-complete mitochondrial genomes for 17 individuals.

That 2019 study concluded that China has three species. It revives the name Andrias sligoi (Boulenger, 1924) for the Pearl/Nanling clade, and it assigns A. davidianus to the northern Yangtze/Sichuan clade, because the type specimen (the animal that defines the name) came from Zhongba, Chongqing. A third species, from Huangshan, was still undescribed at the time. The 2022 paper then described Andrias jiangxiensis, the Jiangxi giant salamander. It also notes that the genetic identity of A. davidianus is uncertain: two lineages occur near its type locality, and no wild population has been reported there in about 20 years.

These authors do not all agree on the count, and where to draw the lines is still being worked out. This site keeps the name Andrias davidianus, which is the name in the IUCN record that GBIF distributes. The 2019 paper calls A. sligoi possibly the world’s largest amphibian, so the record title may belong to one lineage and not to the whole group.

What threatens it

The 2016 study of the farming industry says the species is Critically Endangered mainly because of overexploitation for food. It describes the animal as an expensive delicacy in China. Farming grew quickly, centered on the Qinling Mountain region of Shaanxi Province. In principle, the study says, farmed animals could meet demand and help conservation. In practice, it finds farming currently more likely to threaten the species.

The farming numbers are striking, and they are old. The 2018 conference abstract says farming expanded from 2004, centered on Shaanxi, that at least 141 farms were licensed by mid-2012, and that 2.6 million farmed animals were documented in Shaanxi in 2011. The abstract also reports a survey of 43 additional farms, where the mean was 8,354 animals per farm, and says many more farms went unrecorded, so the two sets of numbers do not compare directly. These figures come from one abstract and from surveys more than a decade old, so current conditions may differ.

The genetic part deserves a plain explanation. Moving animals between farms mixes lineages that evolved apart. The 2018 paper says northern mitochondrial DNA (the maternal line) now dominates farms, and that hybrid offspring are being released back into the wild under conservation programs. The authors call the result genetic pollution that could end in species loss. The conference abstract adds that government purchases of farmed animals for release do not follow IUCN guidelines.

Counting an animal that hides

How many are left in the wild? Nobody has a clean number. A survey from 2013 to 2016 covered 97 sites. Turvey and colleagues say it found animals at only four of them. The 2022 paper describes the surveys as covering 97 counties and finding only 24 wild individuals, and adds that they were biased and mostly done outside nature reserves. The Animal Diversity Web says about 80 percent of the population was lost between 1980 and 2000. That is one source and a number from a quarter century ago.

There is also a hopeful result. Between September 2020 and March 2022, researchers monitoring Jiulingshan National Nature Reserve in Jiangxi found a wild, breeding population: 291 juveniles and adults and 524 newly hatched larvae. Genomic analysis showed no mixing with other species. The authors call it the only known giant salamander species today with a genetically pure, reproducing wild population, and say that it highlights the value of closed reserves and long-term monitoring. One small, isolated population is good news, but it is not a rescue.

What scientists propose

The papers we read make a similar set of recommendations:

• Keep farmed and wild populations fully separate (2018 conference abstract).
• Quarantine new stock and disinfect farm wastewater (2018 conference abstract).
• Protect habitat where the animals live and keep any conservation breeding apart from commercial farming (same abstract).
• Write a separate management plan for each species, and genetically screen farmed animals to find founders for breeding (2019 paper).
• Rethink release programs, and avoid releasing first-generation hybrids until their fitness has been tested (2022 paper).
• Small local farms may hold purebred stock useful for future population boosts (2022 paper).

Common mistakes and myths

Mistake: farms mean the species is safe. The 2022 paper says the animals are Critically Endangered in the wild despite millions on farms, and the 2016 study found farming more likely to threaten the species than to help it.

Myth: there is one species and one solution. If the lineages are separate species, as several papers argue, a release of the wrong animals could mix them. The 2019 study asks for separate plans.

Mix-up: Chinese and Japanese giant salamanders are the same. The Animal Diversity Web calls Andrias japonicus a close relative, which is a different species.

Mix-up: it is the only giant salamander. The Hellbender is another giant salamander. The Mudpuppy and the Olm also live in water but are much smaller.

Conservation status

The Chinese giant salamander is listed as Critically Endangered on the IUCN Red List of Threatened Species. That is the category as distributed by GBIF, the Global Biodiversity Information Facility, and we checked it on November 9, 2026. Critically Endangered means the species faces an extremely high risk of extinction in the wild.

The pressures in our sources are overharvest for food, disease, genetic mixing from farm releases and habitat loss. The Animal Diversity Web lists the animal as a Class II protected species in China and in CITES Appendix I, a list that restricts international trade. The only trend any source states is that Animal Diversity Web figure of about 80 percent lost between 1980 and 2000. We have no confirmed current trend, and the 2022 discovery shows that some wild groups still exist.

One more caution. The category we print belongs to the name Andrias davidianus. If the lineages are formally split, each may need its own assessment, and the 2019 paper proposes assessing A. sligoi as Critically Endangered. Categories are reviewed and can change, and the copy GBIF distributes can trail the IUCN website by some months, which is why we print the date we checked. GBIF’s copy does not give the year of the IUCN assessment, so we do not state one.