A book introducing bioluminescence in approximately 200 species of deep-sea and dark-dwelling creatures. - Title: Glowing Creatures with DVD - Theme: Bioluminescence - Content: Introduces deep-sea and dark-dwelling organisms - Features: Includes approximately 200 species of bioluminescent creatures I purchased this a while ago, so there are some scratches and stains, but I think it's great for studying biology! I am an amateur, so please no complaints. Thank you for looking.