Some spiders, bigger ones such as tarantulas, do have book lungs.
Book lungs.
book lungs
Spiders
Arachnids.Example: Spiders
Book lungs.
Black widows move by walking or sliding down its thread
Spiders
No, sea stars do not have book lungs. They have a water vascular system that helps with their movement, respiration, and feeding. Book lungs are structures found in some spiders and scorpions for breathing.
Book lungs
I believe thre types of lungs are the differance. Not quite sure the name of the earthworm lung but spiders have what are called book lungs that have several layers that resemble "pages" flf
all spiders breath through there lungs called "book lungs" that is the organ