When it comes to animal intelligence discussions, I find any form of domesticated animal to be a terrible model: They've been bred (and often inbred) for traits

When it comes to animal intelligence discussions, I find any form of domesticated animal to be a terrible model: They've been bred (and often inbred) for traits that are NOT indicative of intelligence. That said, your central (and valid) point actually agrees with the above poster: To use criteria to determine "intelligence" is good science; to declare animals can't have intelligence or anything related to intelligence because they aren't humans is empty.