Sometimes the lake dries up to a considerable extent.
Between 150 and 50 thousand years ago,the water level of the lake dropped so much that it was divided into 3 independent reservoirs located in its deepest parts.
Taiga is a challenging biome for reptiles and amphibians.
Only a few species occur in the boreal forest, including the Striped garter, Siberian salamander, Wood frog, American and Canadian toad, and others. Most of these hibernate underground in winter.
