Why Giving Birth Hurts 为什么生孩子很痛苦？ Y: Don, you sure are lucky dont have to give birth. Im glad were an intelligent species, but boy, that infant head feels mighty large going through that narrow birth canal. And then, after all tha...
Canine Compulsive Disorder 狗也有强迫症？ Yal: Your dog Raphine sure to be seemed to be lick ing his legs excessive . Is he Ok? Don: Its nothing! Y: Im afraid not, Don. Raphine may have what animal behaviorists call canine compulsive disorder...
Amazing Crab s D: What's the difference between a hard- shell ed blue crab and a soft- shell ed blue crab ? Y: Is this a trick question? D: I'll give you a hent. It has to do with the crab s skeletal system. Y: Skeletal system? You got me there, I kn...
Migraine or Face Pain? 偏头痛还是脸部疼痛？ If youve ever had a migraine headache, you dont need me to tell you it hurts. Doctors report that about twenty million people suffer from serious headaches, and ten percent of these have intractab...
Chemical Oracle 神秘的阿波罗神庙 If youre planning a trip to Greece in the future, youll want to schedule a visit to the temple of Apollo at Delphi. This famous temple was the home to the Pythia, a specially chosen and trained woman who, acco...
Beetle: Stronger than Hulk? 甲虫强过绿巨人？ As we know from the movie, the Hulk is a guy who, when he gets angry, turns into the strongest, meanest creature on earth. The natural world features a few amazing ly strong creatures of its own. I...
So Long, Sun 再见了，太阳 D: Wow! What a beautiful sunset. Y: Enjoy it while it lasts, the sun wont be around forever, you know. D: You mean, one day the sun will disappear? Y: Not exactly disappear, but the sun will eventually burn out and die...
Can You Choke a Fly? 你绝对勒不死苍蝇 Don:These dark flies are driving me badly! I wish I could strangle each of every one of them! Yal:Im sorry to say, but thats impossible. D: I realize that. I dont mean that I have to strangle all of them....
The Eye of the Dung Beetle A number of animals, including honeybees and butterflies, use sunlights polarization in their navigation s , but the dung beetle is the first animal ever discovered to use moonlights polarization to guide its travels. Polar...
Stutter ing Ear 用耳朵治口吃 Remember that kid in your grade school class who stutter ed ? Well, he was in good companya whopping three million people in the United States alone are affected by this problem. 还记得小学时班上那个说话结...
Sperm Sniff Out Their Targets 精子靠嗅觉发现卵子 Scientists who study human sperm have long wondered whether human sperm could somehow sense the presence of an egg . Then, just about a decade ago, it was discovered that sperm have protein s...
肌肉生而不等 Don:Its not fair! Yal: Whats not fair? D: I was rereading the Constitution of the United States. It says here that All people are created equal.Thats just not true! Y:What do you mean? D: Well, its always being my dream to become t...
Why Alien s Wont Eat Us Are alien s going to eat us? Thats more of a science fiction question. But science does have something to say here, and sometimes purely imaginative questions are great tools for helping us think about how the real world works...
How Birds Breathe 鸟是如何呼吸的 Y: Don, flying is tougher than walking or running, right? So how come birds dont get winded and run out of breath? D: Actually, in terms of distance per unit energy, flying is pretty efficient . Plus birds have...
Shopping and Hummingbird s 购物和蜂鸟 Yal: Did you know, Don, that your shopping habits maybe similar to a hummingbird s? Don: Are you going to tell me that hummingbird s are also sold on flash colors and miracle diamonds? Y: No. But it turns ou...
