The Earth's magnetic field is aligned with the north and south poles, and has reversed many times during geologic history. A fossil's magnetic orientation can give clues to its date. A maloca is a communal house or hut. The Yanomamo tribe , for example, built maloca where many tribe members live. Mammals evolved during the Triassic period .
People are mammals.
The mandibles bite off plant material and tear it into small, easily digestible pieces. These trees live along the shore in tropical waters with their roots in the salt water. Kangaroos, wallabies, koala, wombats, and opossums are marsupials. The micropyle is the large depression at the top of a butterfly's egg. This small pit marks where the sperm entered the egg.