

Physical features and wildlife.
As a result of both this and the size of the republic, there are four landscape zones in Yakutia: the arctic deserts, tundra, forest tundra, and taiga. Birch, pine, cedar, fir, poplar, and willow trees grow in the taiga, which covers 72% of the whole area. The main plant species are mosses, lichens, herbs, and shrubs. There are also a variety of berries: currant, cowberry, blueberry, cranberry, wild strawberry, cloudberry, bird-cherry, mountain ash and others.
A great number of large and small rivers flow through Yakutia. The main river of the republic is the Lena River, which is 4,400 km long. Other large rivers include the Aldan, the Kolyma, the Viluy, the Indigirka, and the Yana. The rivers of Yakutia flood in spring, but they can freeze right down to the river bed and stay frozen for many months during winter.
Yakutia is known as the lake district of Russia. There are over 700,000 lakes in the republic, making a total of 250-300 cubic kilometres of fresh water. Many of the lakes are rich in fish and also contain a special mud, which is said to cure a number of illnesses. The deepest lake, Sebyan-Kyol, is 137 metres deep.
In the mountains of eastern Yakutia, there are 485 glaciers (taryny) covering a total area of 413 square kilometres, which means they are an important source of water. There are 372 glaciers located in the Chersky mountain range. The biggest of these is Ulakhan Taryn
The territory of Yakutia has a complex geology, rich in natural resources. The raw minerals found in Yakutia include tin, antimony, wolfram, complex ores, gold, diamonds, fuel coals, phosphate, zeolite, oil and gas.
The wildlife of Yakutia is diverse. Among the birds found in the area are geese, ducks, swans, partridges, black grouse and wood grouse. There are also a lot of predatory birds like hawks, falcons, eagles and owls. The Red Book of Yakutia lists fifty protected species. The rarest species in the world, the white crane, nests mainly inYakutia and the Sakha believe that white cranes bring luck and happiness.
All species of wildlife in Yakutia are well adapted to the cold climate. They have thick fur to maintain a normal body temperature and are able to save and store fat for the winter. Some species spend the winter period in a state of 'anabiosis' (sleeping or hibernation) for example, chipmunks, ground squirrels and bears.
Climate
The climate of Yakutia is best described as continental, with extremely severe, long winters and short, hot summers. Temperatures are below 0°C for six months of the year, October to March. The range between the lowest winter temperature and the highest summer temperature is 101°C. In summer, temperatures may rise up to 35°C. Due to the abundance of heat and light during summer, plants grow and mature in a short period. In the 19th century, the Russian geographer and ethnographer, Alexander Middendorf, remarked that Yakutia's climate was a perfect example of the Siberian climate.
Winter is the longest period in Yakutia. The temperature falls below zero at the beginning of October in the north of the republic and by the end of October, everywhere else. The average temperature in winter is -40 to -45°C. The coldest temperatures were registered in the two centres for extreme cold in the northern hemisphere - Oymyakon (-67.8°C) and Verkhoyansk (-67.7°C). In the continental part of Yakutia, the winters are windless; only in the New Siberian Islands and along the sea coast might the wind be quite strong (up to 25-30 metres per second). Snow falls in the New Siberian Islands at the end of August, while in the rest of the republic it usually starts in October and continues for 220-250 days. The cold air stays in the river valleys and lake hollows and turns into a thick icy log, which covers the trees and bushes in a white milky 'coat'. The nights are long and dark. The long winter nights occur in the regions that lie within the Arctic Circle, where it is dark for twenty-four hours a day for the four winter months, from November onwards. On clear frosty nights, the sky is sometimes lit up by the bright flashes of the Northern Lights. Spring is a very short season in Yakutia. The weather is usually bright and dry and sometimes the wind blows, moving the Arctic air down from the north. During April, the snow melts, and the temperature varies from -5°C in the north to +10°C in the south.
Summer begins in the central and southern regions of Yakutia at the end of May; in the north it starts in the second half of June. The hottest month of the summer is July, when the temperature may go as high as 36°C. At the same time, the cold Arctic air blowing from the north may cause night frosts. Over most of the republic, the summer is short but warm, while on the sea coast and on the islands, it is dull and windy. The sun stays high in the sky, allowing daylight in some areas for twenty hours. In the north, the sun never sets and shines brightly for twenty-four hours a day. In the second half of the summer, fog forms in the low-lying areas and it often rains. Autumn begins in September, with early frosts and rains, followed by the beginning of winter at the end of October.