Albert Einstein's theory of relativity is actually two separate theories: his special theory of relativity , postulated in the 1905 paper, The Electrodynamics of Moving Bodies and his theory of general relativity , an expansion of the earlier theory, published as The Foundation of the General Theory of Relativity in 1916.
Timber or Grey Wolf. Once the world's most widely distributed mammal, the grey wolf has become extinct across much of its former range and its present distribution is much restricted. Grey Wolf (Canis Lupus), Carpathian Mountains, Romania.
Gray wolves can survive in many biomes as long as food is plentiful and the climate is relatively cold. The Siberian Taiga, one of the habitats they are best suited to, is a boreal forest with long, cold winters and short summers.n Canada and Alaska, the gray wolf population is stable. In most of North America, however, they are an endangered species. In Europe, Asia, and Africa, the remaining wolf populations are tiny. The largest wolf population in Europe and Asia is found in Russia, which includes the Siberian Taiga.