The animals are work harder than Mr.Jones. The pigs are the only animal that is not working. The pig direct and supervised the animals. They made a flag that has green which represents the field and white hoof for signified the future republic of the animals. There teaching the animals how to read and write.
Boxer is the strongest. He has a motto it is "I will work harder."
He is one of the leaders of the revolution. He never agrees with Snowball.
Clover is a smarter than some animals. He learned the whole alphabet.
Contrast and contradiction : All the animals worked but the pigs didn't work at all because they are the leaders of the revolution so they were only directing and supervising the animals.