Female Cockroaches and Egg Cases (IMAGE) Hokkaido University Caption (A) Female cockroaches kept in a container. (B) The egg case on the left is an asexual egg case, while the right one was produced by sexual reproduction. (C) A dissected egg case stuffed with 16 eggs. Credit Kato K. et al., Zoological Letters, March 13, 2017 Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.