标签:evolutionary 相关文章
February the 12th is Darwin Day. It is to celebrate the anniversary of the birth of Charles Darwin on February 12, 1809 and his life as a scientist. This day also aims to encourage children to get into science. Darwin was one of the worlds greatest s
When you consider all life on Earth, billions of human beings are a relatively small number when compared to trees, earthworms or even viruses. But humans really know how to use what little power we have, a new study found. The study is said to be th
Newly Discovered Bones Show Genetic Mix of Ancient Human Relatives Scientists say they have discovered the remains of an ancient female whose mother was a Neanderthal and whose father was Denisovan. Neanderthals and Denisovans are early human species
Mother Nature is an exquisite and complex life-system. It's charm appears in the trees, stream, soil, insects, moss and fungus, all the things on the earth in different shapes, which are interdependent. When you get close to nature, please remember,
I'm a neuroscientist. And in neuroscience, we have to deal with many difficult questions about the brain. 我是个神经生物学家。在神经生物学研究里,我们需要处理很多关于大脑的难题。 But I want to start with the easies
Podcast is sponsored from the people of American Chemistry, who provide the plastics, medicines, and innovations that make life modern. Learn more at Americanchemistry.com. This is Scientific Americans 60-Second Science, Im Cynthia Graber. This will
Male nursery web spiders often woo potential lady-friends with gifts wrapped in silk. Mating may ensue, during which a female unspools the present, expecting to find a tasty treat. But the males can be unscrupulous. Some offerings contain inedible pl
This is Scientific American, 60-second science. I'm Evelyn Lamb. Got a minute? That is Generation Zero of DarwinTunes. It is a website researchers are using to study how listener preferences affect the evolution of music. A new study claims that the
By David McAlary Scientists have discovered fossils of an ancient, tiny species of human in an isolated part of Indonesia. They are bones from what they say is a smaller version of the now extinct imm
Rare black penguin in the Antarctic islands The penguin, believed to be suffering from a condition known as melanism, was spotted on Fortuna Bay, a sub-Antarctic island of South Georgia, about 860 miles off the Falklands. 这只被认为患有黑化症
Fish Use Whole Bodies When They Eat Fish are animals that live in the water. They are also vertebrates animals that have a backbone and a spine. They have gills that permit them to take oxygen from the water. But have you ever wondered how vertebrate
2012考研英语长难句 5、To filter out what is unique from what is shared might enable us to understand how complex cultural behavior arose and what guides it in evolutionary or cognitive terms. 【分析】 复合句。句子主干为To filter
It's time we moved beyond Mars and Venus, 男人来自火星,女人来自金星的时代已经过去 because the truth is that men are from Africa 现在所有人都知道真相,男人来自非洲 and women are from Africa. 女人也来自非洲
【英文原文】 Point at a ball and a dog will look at the ball, whereas a cat will probably look at your hand. Dogs seem to have a ready understanding of how human beings direct attention by pointing, and can follow our gestures almost as if they
What was most surprising, however, was that there were so many body designs that had failed to make the cut, so to speak, and left no descendants. 然而,最令人吃惊的是,如此之多的体形,打个比方说,却缺少深度、没有留下
Coal-fired Power Plants The invention of the incandescent light bulb by Thomas A. Edison in 1879 created a demand for a cheap, readily available fuel with which to generate large amounts of electric power. Coal seemed to fit the bill, and it fueled t
进化与轮子 从前,研究自然界没有轮子的进化论生物学家都同意不能用无此需要来解释这种现象:轮子对于动物会像对于我们人类一样有好处。 生物学家们推论,动物没有进化出轮子是由下述
Men find thinner women attractive because they associate their body shape with youth, fertility and a lower risk of disease. 男人们总觉得纤瘦的女性迷人,这是因为男性把体型和年轻、生育能力还有患病风险低联系在一起
The first one is very simple: experience bars measuring progress 首先看一个简单的:用经验值条量度进程 something that's been talked about brilliantly by people like Jesse Schell earlier this year. 它曾经被人精彩地讨论过,比
This is FRESH AIR. I'm Terry Gross. Acid reflux, acne, anxiety, asthma, certain cancers, depression, type 2 diabetes, flat feet, high blood pressure, irritable bowel syndrome, lower back pain and osteoporosis - that's just a partial list of non-infec