Moral laws do not apply to animals for they have no agency. Where there is agency, where there is choice, moral laws must apply.
When our youth are taught that they are but animals, they feel free, even compelled, to respond to every urge and impulse. We should not be so puzzled at what is happening to society. We have sown the wind, and now we inherit the whirlwind. The chickens, so the saying goes, are now coming home to roost.
He made the tadpole and the ape, the lion and the elephant, but He did not make them in His own image, nor endow them with godlike reason and intelligence. Nevertheless, the whole animal creation will be perfected and perpetuated in the Hereafter, each class in its ‘distinct order or sphere,’ and will enjoy ‘eternal felicity.’