Youve probably heard that something like a third of all kids in the United States are overweight or obese. 你可能听过美国有三分之一的孩子超重或体型肥胖。 And youve probably also heard or read about all sorts of possible solutio...
The study found that when mom or dad experience high levels of work related stress, their families are eating one-and-a-half fewer family meals per week, and the parents themselves report eating fewer fruits and vegetables, more fast food, and are le...
It should come as no surprise that the more stressed parents are at work, the greater the burden on their family. Its also probably not a surprise that this dynamic can negatively affect a familys nutrition. 不可否认，父母的工作压力越大，...
Scientists at the University of Rio de Janeiro have been trying to figure out what accounts for the folds. 里约热内卢大学的科学家试图找出沟壑的成因。 One idea postulated that as brains evolve and the more neurons they have, the m...
Dear A Moment of Science, I know the human brain is an incredible thing, the most complex object in the known universe. 亲爱的科学一刻，我知道人类大脑是个神奇的存在，是已知宇宙中最复杂的物体。 But, honestly, it's n...
Nobody knows for sure. But some scientists think that kissing might help us assess a partner's immune system. 没有人知道确切原因。有科学家推测，接吻可帮助我们获得对方免疫系统的信息。 When people kiss, they come clo...
Do you have any idea why people kiss？Well down, the simple answer is just because it feels good. Our lips are full of sensitive nerve endings, which activate sensory areas in the brain. Kissing boosts the levels of neurotransmitter substances such...
Archaeologists have found Neanderthal tools dating from around 100,000 years ago on the Greek islands of Kefalonia and Zakynthos. 考古学家在希腊群岛中的凯利法尼亚岛和扎金索斯岛上发现了100,000年前尼安得特人使用的工具...
We modern humans tend to look down on our ancient Neanderthal cousins. 现代人常常看不起古代的尼安得特人兄弟。 In our imagination, Neanderthals were brutish, cave dwelling lunks 我们想象中的尼安得特人是粗野的、身居洞...
These changes, which gave birds greater facility for flight, made them more effective predators. Its not difficult to imagine that they feasted on giant insects. 这些变化明显增强了鸟类的飞行能力，进而提高了它们的捕食效率。...
Once upon a time, hundreds of millions of years ago, many insects were much larger than they are today. 很久以前，大约几亿年前，许多昆虫的体型要比现在的昆虫大得多。 Scientists have found fossilized remains of dragonflies...
There are many dung beetles competing for a limited amount of food at a dung pile, so whenan individual is finished rolling a ball of dung it is in its best interest to make a quick escape.And the fastest way to travel is in a straight path. Scientis...
A number of animals, including honeybees and butterflies, use sunlight's polarization in their navigations, 很多的动物都根据阳光的自然偏振作用来为自己寻找方向，这些动物甚至包括蜂鸟和蝴蝶。 but the dung beetle i...
When it comes to weird sea-creatures, octopuses arehard to beat. 说到怪异的海洋生物，那就的非章鱼莫属了。 There's the well-known ink-squirting defensesystem, the bird-like beak, and the eight tentacles with theirdouble rows of suc...
Dear A Moment of Science,I know why the ocean is still salty: evaporated water leaves thesalt behind. 亲爱的《科学一刻》我知道为什么海洋依旧是咸的了：水分蒸发掉，留下了盐。 But how did it get salty in the first plac...
