蝙蝠(光明洞) Bats in Cueva de Villa Luz, Mexico

位于墨西哥南部的露滋村的光明洞(Cueva de Villa Luz)中，蝙蝠出现在漆黑的洞穴深处。洞穴的石壁，水流和空气中充满了对人体有毒害的硫化氢，供养了多种奇特的生物。除了蝙蝠之外，这个硫磺饱和的环境下还孳生着大量的蜘蛛，螨虫，有鞭蝎以及一种富含血红蛋白的小鱼。
Photograph by Stephen Alvarez
Bats emerge from the inky depths of Cueva de Villa Luz in southern Mexico. Hydrogen sulfide, which is poisonous to humans, permeates the cave’s walls, streams, and air, sustaining a rich variety of bizarre organisms. In addition to bats, spiders, mites, amblypygids, and small, hemoglobin-rich fish thrive in the sulfur-saturated environment.
打哈欠的老虎 Yawning Tiger, India

如图中这只印度班达迦国家公园的雌老虎，在炎热的天气里老虎总是没精打采的打瞌睡，以为夜里的捕猎积蓄能量。在最近的一百多年里，捕杀以及森林的破坏使得老虎的数量由几十万只骤减到不到2,500只。如今，班达迦据称保持着国内最高的老虎密度。
Photograph by Michael NicholsTigers, like this female in India’s Bandhavgarh National Park, spend hot days in a languorous laze, storing energy for nights of hunting. Over the last hundred years, hunting and forest destruction have reduced tiger populations from hundreds of thousands of animals to perhaps fewer than 2,500. Today Bandhavgarh claims to maintain the highest density of tigers in the country.

皮卡车厢里的美洲驼 Llama in Pickup Truck, Chile

在智利月球表面似的阿塔卡马沙漠中，一辆皮卡的车厢里有一头紧张的美洲驼。艾马拉人居住在阿塔卡马的荒芜的高原上，他们饲养美洲驼以获取肉食和皮毛。
Photograph by Joel Sartore
A nervous llama lies in the back of a pickup truck amid the moonscape of Chile’s Atacama Desert. Atacama’s barren high plateaus are home to the Aymara people, who raise llamas for their meat and wool.
(肉食性波尺蛾)毛虫 Caterpillar on Fern, Hawaii

在夏威夷的瓦胡岛上,一条肉食性波尺蛾(Eupithecia)毛虫正在一片蕨叶上巡游,寻找猎物。这种食肉毛虫非常罕见，而且拥有非凡的适应性特征，如坚固的外壳，诱人的气味，和巧妙的伪装，以提高其杀伤力。
Photograph by Darlyne A. Murawski
A carnivorous Eupithecia caterpillar prowls a fern leaf in Oahu, Hawaii, in search of prey. Such predatory caterpillars are rare and possess extraordinary adaptations, such as armor shields, seductive smells, or artful camouflage, to enhance their lethality.