The state's most important rivers are the Missouri, rising in southwest Montana and flowing north and then east across the state, and the Yellowstone, which crosses southeastern Montana to join the Missouri in North Dakota near the Montana border.
Habitats. Hoverflies can be found in every biotope but not in deserts. Each species tends to prefer a certain type of habitat and is limited to a distinct range within the country. There are relatively few species with broad habitat tolerances that enable them to be distributed throughout southern Africa.
There are more than 60 different species of opossum, which are often called possums. The most notable is the Virginia opossum or common opossumâthe only marsupial (pouched mammal) found in the United States and Canada.A female opossum gives birth to helpless young as tiny as honeybees.here are more than 60 different species of opossum, which are often called possums. The most notable is the Virginia opossum or common opossumâthe only marsupial (pouched mammal) found in the United States and Canada. A female opossum gives birth to helpless young as tiny as honeybees.