Wait all you want.........its you that claimed that animals can comprehend right from wrong and have a moral compass based upon the concept of morality. Science is your supposed realm, you should have no problem presenting the objective, observable, reproducible facts in evidence that demonstrate that aniamls can reason between right and wrong. Go for it.
The example that you attempted to use to define Morality........a mother protecting its offspring, is not based upon morality..........or you would have to admit that any Woman that aborts her child by choice.........is IMMORAL by natures standards. So.....self contradictory.
Why do all so called atheists attempt to project the burden of Proof upon others when its they that ACCUSES but are incapable of PROSECUTING their accusations and demand that others prove their negative opinions? Could be......they possess no evidences of the positions they claim are true?

In order to be an atheist.......one would require to be in possession of the knowledge that God cannot exist, or admit their unbelief is faith based void of evidence.....so oxymoronic
Its simple: Only man on earth is made in the "image" of God (Genesis 1:26)........God is a spirit (John 4:24)......thus, the image that reflects God in man...i.e., IMAGE is the spirit that animates the flesh of man and makes him a living being, that image came from God when He breathed life into mankind (Genesis 2:7).........and only man can become like God in self determining Right from Wrong, Good from Evil.
"And the Lord God said, Behold, the man has become as one of US (the Godhead, Father, Son and Holy Spirit) to know good and evil; " -- Genesis 3:22
No animal can be Good or Evil. The question you asked or rather demand that I address with your negative false primise......i.e., logical fallcy (morality exists in nature).....is addressed by Common Sense. Have you ever seen an animal put on trial for breaking any of the actions that society has determined is illgeal by making Common Law by majority consensus?
Show me these animals that have been put on trial........for murder, theft, etc...........
Laws do not establish morality..........they reflect the morality or lack thereof in any society. Laws define immorality. There can be no laws without a lawgiver, just who is nature's lawgiver, that defines morality for all animals? Animals are incapable of sin. Thus, God does not judge aniamls (WP?) for their lack of comprehending right from wrong.......only man is judged in absolute measures of morality. The exact reason that athesits exist.........they can't stand the idea of being judged based upon their abilities to comprehend right from wrong.
What does God say about arguing with FOOLS? "A fool takes no pleasure in understanding...........a fool simply wants to express his opinion." -- Pr. 18:2