[a real Sheila]

Feh.
I’d go as far as saying that some breeds have as much intelligence as a 2-yr old child.

[Pontiac]

Some breeds are more trainable than others.

It also depends on what you want the dog to do. Consider how the TV dog wisperer can get dogs to things the owners never could. Understanding dog psychology and communication has a great deal with how a dog will respond.

Trying to compare human and animal intelligence is problematic anyway.

[cripplecreek]

I got a Jack Russell and I'd put him up against our president in an intelligence test any day of the week.

[Deb]

If the 2-yr old eats his own poop.