If the Following Passage Contains an Argument, Write a Well-Crafted

Essay

If the following passage contains an argument, write a well-crafted version of it; if the passage is not an argument, classify it as a report, illustration, explanation, or single conditional statement.
Of all the animals commonly eaten in the Western world, the pig is without doubt the most intelligent. The natural intelligence of a pig is comparable and perhaps even superior to that of a dog; it is possible to rear pigs as companions to human beings and train them to respond to simple commands much as a dog would. (Peter Singer, Animal Liberation)