a camel-in the Zoo, in Africa - plants, dried leaves,seeds,grass -run - help people
a cow -on the farm -grass - walk,run -give people milk
an eagle-in the Zoo -meat - fly -nothing
a whale- in the Sea and ocean - fish - swim - nothing
a crocodile-in the Zoo, in Africa, in Asia -meat,fish - swim -nothing
a sheep- on the farm -grass - run - gives wool