Complex sentence: Unlike many other area within Chukotka, a comparably warm and lengthy summer creates favorable conditions for the growth of all kinds of deciduous forest and vegetation is there is a very diverse world of animals, birds and insects to be found.
Split into simpler sentences: Unlike many other areas in Chukotka, comparably warm and lengthy summers create favorable conditions for the growth of all kinds of deciduous forests and vegetation. There is a very diverse world of animals, birds, and insects to be found.