SORU: aşağıdaki parçaya göre cevaplayınız
The writer points out that one of the reasons why there are very many different kinds of birds in New Guinea is ----.
New Guinea is home to some of the worldís strangest
creatures. For instance, there is a special species of
kangaroo that lives in trees. There are also lizards
that are five metres long, and butterflies that are as
big as dinner plates. New Guinea is an island hardly
any larger than the state of Texas, but it has as many
bird species as are to be found, for example, in the
whole of North America. This is partly due to the fact
that it has largely remained isolated from the rest of
the world. But it is also due to the fact that it has an
incredible variety of ecological features, ranging from
tropical rain forests to glaciers.