Most storms travel along with the jet stream, which almost always travels west to east, and it's occasionally affected by northern or southern wind streams.
As an interesting fact, without the jet streams, the weather would change little or nothing, and some regions could never receive rain, while others would never see the sun.
They became endangered due to massive illegal poaching. They are hunted for their extremely soft, light and warm underfur which is usually obtained after death.
I took this class as a Freshman and this is the number one thing I remember. Is because my teacher made fun of how small their country was compared to the U.S.
