A list of sharks that are obligate ram ventilators :: Sacha Chua
Fish gill - Wikipedia
PDF] PADDLEFISH BUCCAL FLOW VELOCITY DURING RAM SUSPENSION FEEDING AND RAM VENTILATION | Semantic Scholar
How Fish Breathe: Ram Ventilation, Buccal Pumping – Poseidon's Web
Save The Sharks on Twitter: "Did you know that sharks, unlike other fishes, do not have an operculum, which is a hardened protective lid over the gill! Sharks have two different ways
How Fish Breathe: Ram Ventilation, Buccal Pumping – Poseidon's Web
How Fish Breathe: Ram Ventilation, Buccal Pumping – Poseidon's Web