It's an eel! It's a noodle! No, it's actually a sinister cartilaginous tube, grow up.
 
This week we answer your burning questions about the lamprey, including: what is up with this tube boy? Why are some lampreys parasitic carnivores and others peaceful angels? Are the dots on the sides of their face gill pores or very cool edgy facial piercings? How powerful is their suck? What is a buccal gland and how does it aid in their sin? (hint: it involves anticoagulant and disturbing imagery)
 
Heads up, minor Attack on Titan spoilers at 17:35 - 18:00. Thanks, Flora.