The rider should avoid slouching too much, or sitting too upright, I believe their body should be at about a 45 degree angle.
One would add first names if there were multiple authors mentioned with the same surname. If there are many more authors one would add "et al." inside of the parentheses. If the name of the author is unknown then one would add the title of the work which is being cited.
Gorillas, which are large and originate in Africa, can sometimes be found in zoos.
It just explains and tells the importance of the idea
