The reproductive season of the Siberian salamander begins in mid-April or May in temperate areas and the end of May or mid-June in Arctic areas (3). After a courtship dance by the male (2), the female Siberian salamander lays a clutch consisting of a pair of egg sacs connected to each other by a stalk, which attaches them to the substrate (3). The Siberian salamander prefers slow moving, shallow water such as ponds and puddles when laying eggs (6) (7).
Each egg sac usually contains between 50 and 90 eggs. The eggs of the Siberian salamander hatch after 15 to 40 days in temperate areas and 12 to 24 days in the Arctic, and the larvae of this species usually measure between 8 and 10 millimetres in length (3). The adult Siberian salamander is terrestrial and has well-developed lungs (7).
The diet of the Siberian salamander is mostly composed of slugs and arthropods, while the larvae generally eat smaller invertebrates and plankton (3).
The active period of the Siberian salamander runs from April or May to September or October, after which it hibernates in a very unique way (3). During hibernation the Siberian salamander is able to survive temperatures as low as -35 degrees Celsius by allowing its body tissues to freeze, and it is able to survive in this state for long periods of time (3) (8). Unable to burrow through the permafrost, this species is often trapped within the ice on the surface of the ground (9), although rotten trees and logs are also used for hibernation (3). When temperatures begin to increase in spring, the ice thaws out, defrosting the salamander (6) (8) (9).