At Your Service!

How do animals serve humans?

horse drawn carts used in the harvest of wheat

Steps:

1. In parts of the world today, animals are still used to pull carts of mail and other items for delivery to houses and businesses. Some of the animals in use for this purpose are:
water buffalo
elephant
donkey
mule
camel
horse
sheep
sled dogs
reindeer
In other parts of the world, horses, donkeys, cows, and water buffalo are used to plow the ground.