Report Abuse. An egg lives for around 12 hours after ovulation. Sperm can live for about five days inside the uterus, so providing those two time frames collide, it can be pretty soon after sex.
The tail arrangement is believed to have been a defensive weapon against predators. The term thagomizer was coined by Gary Larson in a 1982 Far Side comic strip, in which a group of cavemen in a faux-modern lecture hall are taught by their caveman professor that the spikes were named for the late Thag Simmons.
Sci-Fi writer Robert A. Heinlein first used the term moonbat in his short story Space Jockey. I agree with westsideguy, moonbat is appropriately named if he/she thinks bringing in someone inexperienced to be the CFO of a bank is a good idea. You could always toss in moonbat for effect though.