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.
Although the origin of the name Luddite (/ËlÊd.aÉªt/) is uncertain, a popular belief is that the movement was named after Ned Ludd, a youth who allegedly smashed two stocking frames in 1779, and whose name had become emblematic of machine destroyers.