Chinese Giant Salamander

The Chinese giant salamander (Andrias davidianus) is the largest amphibian and the largest salamander species in the world, capable of growing up to 1.8 meters (5.9 feet) in length and weighing over 50 kilograms (110 lbs). Endemic to the rocky mountain streams and lakes in the Yangtze River basin of central China, it is considered a 'living fossil' because its lineage dates back 170 million years to the Jurassic period. It is entirely aquatic, living in cold, fast-flowing water where it uses its large, flat body to navigate rocky crevices. Unlike many amphibians, it lacks gills in its adult stage and instead absorbs oxygen directly through its wrinkly, porous skin. This incredible creature is unfortunately Critically Endangered due to extreme habitat loss, water pollution, and over-collection for the luxury food market and use in traditional Chinese medicine. Conservation efforts are ongoing, including breeding programs and habitat protection, to save this ancient species from extinction.

The Chinese giant salamander has a massive, flattened body and a broad, flat head with small, lidless eyes. Its skin is highly wrinkled, porous, and covered in mucus, which aids in cutaneous respiration (breathing through the skin). It has short, thick limbs and a long, laterally compressed tail that it uses for swimming. Its coloration is typically dark brown, black, or greenish-brown with irregular mottled patterns that provide excellent camouflage against rocky riverbeds.

These salamanders are primarily nocturnal, spending their days hidden in underwater crevices or under large rocks. They are entirely aquatic and rarely, if ever, leave the water. They are generally solitary and territorial, fiercely defending their chosen hiding spots from other salamanders. Due to their poor eyesight, they rely heavily on special sensory nodes along their head and body that detect minute changes in water pressure and movement, allowing them to locate prey in the dark.

The Chinese giant salamander is an ambush predator that feeds on a variety of aquatic animals. Its diet includes fish, frogs, crustaceans, insects, and occasionally small mammals or water birds. It hunts by remaining perfectly still until prey comes within striking distance, then opening its massive mouth to create a vacuum that sucks the prey inside in a fraction of a second.

Breeding occurs between July and September. The male locates a suitable underwater cavity and defends it as a nesting site. When a female arrives, she lays a string of 400 to 500 eggs, which the male then fertilizes externally. The male guards the eggs fiercely for 50 to 60 days until they hatch. The larvae are born with external gills, which they lose as they mature into adults.

Historically revered in Chinese culture, the giant salamander has more recently become a highly prized luxury food item, leading to intense poaching. Farming of the species has become a large industry in China, though it often relies on wild-caught individuals to supplement breeding stock, further straining wild populations. Conservationists are working to shift local attitudes and protect remaining wild habitats.