Humans are the only animals who can be fooled? I pretend to throw tennis balls to watch dogs run across the yard for my own amusement all the time! The author

Humans are the only animals who can be fooled? I pretend to throw tennis balls to watch dogs run across the yard for my own amusement all the time! The author doesn't even make an attempt to defend what on the face of it seems like a pretty ludicrous assertion. I know this isn't the central thesis, but, not off to a great start