Made from pure, non-leaching food grade stainless steel, the Safe Starter is the next natural step in the evolution of the baby bottle.

采用纯粹的、非浸出食品级不锈钢制造，安全起步奶瓶是婴儿奶瓶中的最佳选择。

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These structural differences reflect that the planarian (Dugesia japonica) lies in the position of a much higher grade in course of the systematic evolution of Turbellaria.

这些结构差异反映出日本三角涡虫在涡虫纲系统演化中处于较高级的地位。

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Lehigh University biochemistry professor Michael Behe testified for a third day on behalf of a school board that is defending its decision a year ago, to require students to hear a statement about intelligent design before ninth-grade biology lessons on evolution.

MSN: Intelligent design vs. stack of science books