We just learned about the Spider Esophagus.
Spider lungs are located in the abdomen part of their body.
They don't have regular lungs like we do, they have something called book lungs.
The name comes from the way the lungs look on the inside.
There are stacks of air separated by body tissue.
The stacked up lines of body tissue kind of look like a book, which is why they are called book lungs.
Spiders don't breathe like we do, their book lungs are just sitting open and air flows into them.
They have a special liquid called hemolymph that helps soak up the oxygen into their bodies.
(from: wikipedia - book lung)
Kid Facts - Blast from the past: Electric Eel
