Memory is therefore, neither Perception nor Conception, but a state or affection of one of these, conditioned by lapse of time. As already observed, there is no such thing as memory of the present while present, for the present is object only of perception, and the future, of expectation, but the object of memory is the past. All memory, therefore, implies a time elapsed; consequently only those animals which perceive time remember, and the organ whereby they perceive time is also that whereby they remember.
Humans call animals 'dumb'... after they robbed their entire own precious world. They are intelligent beings in their own right, and thoroughly self-sufficient... if not molested by humans. Yet, after millennia of slavery by selfish/callous humans they're made to look dumb! The 'superior species' in their situations would, too, appear 'dumb'.
My point is, I don't see the need to eat animals. I love animals; besides the horrible stuff that's put in meat, I actually love cuddling with animals and petting them and stuff.
There is therefore no reason to put a limit to evolutionary possibility by taking our present organization or status of existence as final. The animal is a laboratory in which Nature has worked out man; man may very well be a laboratory in which she wills to work out superman, to disclose the soul as a divine being, to evolve a divine nature.
There is nothing more harmful to you than improving only your material, animal side of life. There is nothing more beneficial, both for you and for others, than activity directed to the improvement of your soul.
Hippogriff, n. An animal (now extinct) which was half horse and half griffin. The griffin was itself a compound creature, half lion and half eagle. The hippogriff was actually, therefore, only one-quarter eagle, which is two dollars and fifty cents in gold. The study of zoology is full of surprises.