Usually, it's because the sperm gets into the fallopian tube before the egg is released. Once there, the sperm wait for an egg to arrive. After fertilization, it can take 5-10 days for the fertilized egg to begin to attach itself to the lining of the uterus. Pregnancy begins when this happens.
The arrangement of spikes originally had no distinct name; the term Thagomizer was coined in 1982 by cartoonist Gary Larson in his comic The Far Side, and thereafter became gradually adopted as an informal term within scientific circles, research, and education.
Anthony Weiner, seen here shopping for groceries Thursday, is claiming to have coined the term 'Obamacare.' His spokeswoman, howver, now says Weiner meant to say he was the first on the political left to embrace the term. (Andrew Savulich/New York Daily News) Itâs not as impressive as inventing the Internet, but Anthony Weiner says heâs the guy who coined âObamacare.â. Since jumping into the New York City mayorâs race last month, the former congressman has taken heat for gently boosting his resume.