Researchers note that female cockroaches have a three-month reproductive cycle during which they can have up to 50 offspring.

Vanderbilt University. "Cockroaches Are Morons In The Morning, Geniuses In The Evening." ScienceDaily. ScienceDaily, 28 September 2007. <www.sciencedaily.com / releases / 2007 / 09 / 070927132543 ...

The analysis suggests that from their origin in Asia, German cockroaches began to spread in two major waves. The first occurred about 1,200 years ago, and the researchers posit that these ...