Interesting. Further evidence that we humans are not unique, just part of the animal kingdom.
While I agree that some species of animal life other than human are more sentient than others, to compare any other life form on this earth to humans is woefully ignorant IMO.
Consider this, in hundreds of thousands of years in earth's history, what other species of animal has transformed his day to day existence anywhere near a millionth of what mankind has?
Other species of animals no matter how relatively sentient, they live largely the same way if not the identical way they have lived hundreds of thousands of years ago.
Human beings are not just another equal part of the earth's animal kingdom but a completely different, more important, special part of earth's animal kingdom. That is undeniable.
I might add, it's that way for a reason IMO. Human beings while intelligent are among the most fragile and weakest beings on this planet. Most other animals would dominated the human species if but for our intelligence or if they were equally intelligent.