He thinks it is for the best, but none of the animals agree and they decide to rebel.
Lumber is singular. Plural would be lumbers. Lumber is used to describe wood. Lumbers is used to describe the action of being lazy and slow.
Napoleon sells the stack of lumber to Mr. Whymper, gaining money for himself and the farm. However, by selling the lumber, Napoleon inadvertently reveals that the animals were working with humans, breaking his promise to maintain independence from humans. This exposes his hypocrisy and shows the animals that he is not as trustworthy as he claims to be.
To shuffle, or lumber.
He tries to get some lumber but is tricked and the windmill is destroyed.
Forestry is better.
animal habitats can be destroyed
Raccoons may live in lumber yards as there would be numerous places for the animal to hide and find shelter.
"Lumber along" means to move in a heavy, awkward, or slow manner, often suggesting a sense of clumsiness or lack of grace. The term can describe both physical movement, such as a person walking or an animal moving, as well as a more metaphorical progression, such as a project or situation that is advancing but not smoothly or efficiently.
it causes animal habitats to be destroyed
No. They more or less bounce when they need to get somewhere quick (but not too fast) or just walk or step. They're not heavy animals so they don't lumber like a larger-bodied animal like a buffalo or bull might lumber.
The land they mostly grew cotton and tobacco and exported lumber.
Charley warns Willy about letting his sons steal lumber.