Life cycles can be beautiful and fascinating. They can also be totally gross! From flicking poo everywhere to biting each other's heads off, the organisms in these books have some of the smelliest, deadliest, and grossest life cycles on our planet. Readers of this series learn all about the unique processes these creatures carry out during their lives. Lessons about life cycles support elementary life science curricula. Eye-catching photographs help keep the readers' attention and reinforce key points from the text.