The other great principle of evolution is sexual selection, and it operates very differently. 进化的另一大原则是性选择，它运作的方式则大相径庭。 The peacock's magnificent tail is the most famous example of this. 孔雀那华丽的尾巴就是最著名
Obviously you've seen my kids Jeffery, Marcus and Jasmine. I love you guys. I think you guys represent a lot of me and a lot of different personalities as your mom, you represent them as well. You
THE PRESIDENT: The American people are concerned about the situation in our financial markets and our economy, and I share their concerns. I've canceled my travel today to stay in Washington, where I
