Should Adam Smith’s view of animals be reexamined?

Adam Smith’s most famous phrase An exploration of the nature and causes of the wealth of nations this is:

We look forward to our dinner not because of the benevolence of the butcher, the brewer, or the baker, but because they have their own interests in mind. We talk about their self-love, not their humanity, and we never talk about our own needs and never about their strengths.

But a few sentences earlier, Smith wrote:

No one has ever seen a dog fairly and intentionally exchange one bone for another. No one has ever seen how the gestures and natural cries of one animal mean to another that this is mine and this is yours. I would gladly give this for it. When an animal wants to get something from a person or another animal, it has no other means of persuasion than winning the favor of those whose services are required.

I wonder if Smith underestimated the ability of animals, or at least the ability of cats to exchange.

check this out A heart-warming video. I thought it was plausible that the cat thought it was exchanging something it thought was valuable, namely a leaf, for something it thought it was valuable, a piece of fish.

HT to my lovely wife who always finds sweet animal stories.