Similarly, a plant or animal cannot squander all its energy on growing a big body if none would be left over for reproduction, for this is the surest way to extinction.
Petrifaction may also involve a simultaneous exchange of the original substance of a dead plant or animal with mineral matter of a different composition.
石化还可能同时涉及将死亡的动植物的原有物质与不同成分的矿物质进行交换的作用。
3
Medical research often makes use of the forest's plant and animal life, and the destruction of such species could prevent researchers from finding cures for certain diseases.