Because they're too big to hang from grass.
Monkeys have powerful tails and they are able to hang upside down from trees for long periods of time with them. It is unknown why they do this because monkeys are a very unpredictable animal.
Things That Hang from Trees was created in 2005.
they do monkey stuff like swing and trees and eat bannas and groom and that kind of stuff
Hang a Thousand Trees with Ribbons was created in 1996.
as fast at swinging in trees like a monkey
"Hang a Thousand Trees with Ribbons" by Ann Rinaldi has 352 pages in its paperback edition.
Capuchin Monkey, Snow monkey, etcetera!
The ISBN of Hang a Thousand Trees with Ribbons is 0-15-200876-4.
Things That Hang from Trees - 2006 is rated/received certificates of: USA:R
Just Do Quests To Get The Glider
hang in trees
The name of them are trees because they live in trees and they make homes in trees