Quote:When do we cross the line from 'animal' to 'person?'
Good question.
Humans have intellect and the ability to reason, which animals do not have. (granted, some animals can learn simple tricks/commands, if trained properly).
Humans are supposed to be able to use this intellect and reason to be in control of their passions; whereas an animals passions control it (as anyone who has encountered a hungry or randy dog will testify).