It is not valid to assume that the animal mind is only sensation and emotion (phenomenology), and that the human brain has added cognition and computation (reason). (“Will” exists in both, as “the sensorimotor.)

Just as animals have different senses which we lack (bats, dolphins, electric eels, migrating birds and butterflies, even dogs with their sense of smell), so some of them may have cognitive and perhaps other abilities that we know nothing about, and never will, just as they don’t know about our language facility. We and they live in different worlds.

Evolution is not a linear development, but a bud opening into a flower; however, it is also a bush being trimmed.