Can animals do work for us? Some scientists think that animals may do a lot of jobs. They say that we may see many elephants, monkeys, dogs, bears and other animals do a lot of things. Animals can get something to eat if  they do some work for people. Some scientists say that many different animals may do lots of jobs if they know they will get something to eat. Of course, dogs can guard a house, and elephants can do some heavy jobs. And we can also teach animals to work in factories. In America apes  can help people make cars. Scientists believe that these big monkeys may drive cars. What kind of animals can guard  a house?
A dog An elephant An ape A monkey