为了纪念即将到达的达尔文200周年诞辰，《自然》杂志编辑了一组简洁而又富有启发性的进化示例。《连线》则编辑了12幅

 Almost, But Not Quite, a Whale. The fossil record suggests that whales evolved on land, and intermediate species have been identified. But what of their last terrestrial ancestor? In 2007, researchers showed that Indohyus — a 50 million-year-old, dog-sized member of the extinct raoellidae ungulate family — had ears, teeth and bones that resembled whales, not other raoellids.