Even among higher animals such as the dog, cat and bear, similar behavior is noted.
But this report mentioned work with higher animals, at least up to the level of fish.
The higher animals get their teeth without pain or inconvenience.
Of the higher animals, man is alone in this.
In many ways birds are the most able to do this of the higher animals.
Or that the higher animals simply didn't like them?
But higher animals had more flexible behavior, dependent on learning and memory.
If certain higher animals are that clever, why do they so often get lost?
The second was the introduction of consciousness in the higher animals.
Its safety must first be clearly established in higher animals and then in people.