Females lay from 200 to 400 eggs, which hatch in 20-35 days. Within 3 months the larvae transform into a terrestrial, immature stage called the red eft, which lasts for three years but in some cases the larvae turn directly into adults. A similar species is the red salamander. Among vertebrates are amphibians, reptiles, mammals, bony fish, and cartilaginous fish. The red-spotted newt is an amphibian.
Amphibians spend part of their life in water and part of it on land.
They have moist, scaleless skin and lay jelly-covered eggs. The class of amphibians also includes frogs, toads, salamanders and newts. A newt would most likely be found in marshes, streams, ponds, small lakes, and rivers. It has a brown back with red spots encircled by black and its stomach is yellow to orange. Young newts are called efts and have bright red, rough skin.