Joe is generally used as a boy's name. It consists of 3 letters and 1 syllable and is pronounced Joe. In the U.S. in 2014, it ranked 565 in baby name popularity for boys with 488 occurrences.
There have been five mass extinction events throughout Earth's history: 1  The first great mass extinction event took place at the end of the Ordovician, when according to the fossil record, 60% of all genera of both terrestrial and marine life worldwide were exterminated.
Mass extinctions are periodic rises in the extinction rate above the background level. They are events which are not caused by changes in habitat or competition but catastrophes. Perhaps over 95% of all extinctions have occurred as background events, with the rest consisting of catastrophic events which:-.