Sometime Cavemen 曾经的山顶洞人 From the bestselling novel Clan of the Cave Bear to the 1981 movie Caveman, pop-culture tends to misrepresent prehistoric people as cave dwelling brutes. But even the most speculative recreations of early human...
Secrets Of Silk Production 蚕丝生产的秘密 Fifteen hundred years ago in China, silk production was a state secret. 在1500年前的中国，蚕丝的生产方法是国家机密。 The silk trade was so valuable that anyone who tried to take sil...
Survival Of The Sluggish 缓慢的生存 Silkworms have been bred over thousands of years to behave quite unlike their caterpillar cousins in the wild. That's because people purposely breed silkworms to fit this job description: 蚕这种动物已经被...
The Mathematics Of Middle-Age Spread 中年发福伤不起 Let's say you're an 18 year old male who runs every other day, logging 12 miles a week. 假设你是一个18岁的男性，每隔一天就会跑步，算下来每周会跑12英里。 Now fast...
When Continents Collide: The History Of Our Planet 大陆相撞：我们星球的历史 It was one of the Earth's momentous times. Continents collided. Volcanoes erupted. Ocean currents shifted. Species ran amok. 这是地球意义非凡的时刻之一...
Why Do Zebras Have Stripes? 为什么斑马身上有条纹？ For many animals, camouflage is an important part of survival. A leopards spotted coat and a polar bears white fur help them blend into their respective environments. 对于很多动物来说...
How Neanderthals Fought Disease 穴居人怎样抵抗疾病 Every year people are encouraged to get their annual flu shots. Signs are posted at drug stores and clinics. Get your shots here. Modern preventive medicine has saved millions of lives. But...
Freeze 冻结的一瞬 Suppose you are an animal. Well, actually, you are an animal, but suppose youre another kind of animal, maybe something small that might make a tasty snack for a larger predator. 假设你是一只动物。额，你其实本来就...
Did You Know That Moose Can Have Arthritis? 糜鹿也有关节炎？ Its easy to tell, even at a glance, that people and moose are pretty different. Moose, at least males, have big, wing shaped antlers. People have no antlers. Moose are herbivores, e...
What Is Whipped Cream? 什么是鲜奶油？ It adorns ice cream sundaes, pumpkin pie, gingerbread, and hot chocolate. Its sweet creaminess tantalizes taste buds and sends dieters running from the scale. Did you ever wonder why heavy cream whips into...
