Anatomy
Limb: These amphibians have four limbs at the base of their bodies. Most of the species under this genus have five toes on their hind-limbs and four toes on their forelimbs. They do not have claws. Some of them have very small or no hind-limbs at all.
Size: Their size varies with different species, ranging from 2.5 cm to 20 cm. Chinese Giant salamander can grow up to a length of 5.9 ft.
Weight: On average salamanders weigh between 120 gm and 200 gm. Giant salamanders weigh up till about 63 kg.
Color: Various different species and sub-species of Salamanders have different colors. Their color range varies from red, black, blue, yellow, orange to many other shades. They have spots on them of different shades than that of their body color.
Anatomy: They are cold blooded and their temperature changes with their habitat. Different species under this genus respire through different organs. Some species respire through gills that are on each side of their heads, most of them have external gills and some have internal gills which are hidden beneath slits. Some other species breathe through lungs. Many of the species have both gills and lungs
Respiration: Salamander children swim in the water and breathe by using ingsang. After adulthood, usually the ingsang turns into the lungs and can live on land. However, the types of salamanders that for the duration of their lives remain in the water, they can never turn their ingsang into lungs
Lifespan: Salamanders can live up to 25 years, though most do not reach that age in the wild due to predation and other hazards