This documentary is interesting because it does not focus just on animals on cages but it also gives the point of view of the staff that are dedicated in keeping the animals with good health. there is no dialog in the movie but it is not necessary because the images that we see in this film are more than enough to understand what is going on in the film. this documentary shows very interesting situations that happen inside a zoo that we as visitors from the zoo are not allowed to see when we visit the zoo. we can see surgical procedures and even the procedure of an autopsy of a baby rhino. not forgetting we can see when the zoo keepers feed the animals.