求翻译：爱幼弃老是动物的本性，是有目共睹的。因为只有爱幼，动物才能一代一代地衍生下去。人类是动物进化而来的，就不能不说还残存着，爱幼弃老之“本性”了。是什么意思？

Child-friendly nature of abandoned animals, are obvious. Because only the child-friendly, animal from one generation to the derivative. Humans are animals evolved, just say that it remains, child-friendly disposal of old "nature".

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Child-friendly nature of abandoned animals, are obvious. Because only the child-friendly, animal from one generation to the derivative. Humans are animals evolved, just say that it remains, child-friendly disposal of old "nature".

The love is young to always abandon the natural instinct of the animal, it is obvious to all. Like young only, animal could a generation of one generation derive go down. Mankind evolve of animal, have to say getting remaining, love young to abandon the old " natural instinct ".