OceanX - "ShArKS hAVe tO SWIm CONsTanTLy oR ThEY'Ll DIE"—noooo, hashtag #notallsharks! Out of around 500 species, only ~24 species of shark* HAVE to swim constantly. They're called "obligate ram ventilators," meaning
Can a Shark Drown if They Stop Swimming? - Dutch Shark Society
Gill slit - Wikipedia
Gas Exchange
Do Sharks Sleep? | DILEMMAS
Do Sharks Really Die if They Stop Swimming? | Britannica
Shark dissection
Some sharks have lost the ability to breathe by pumping water through their gills (buccal pumping). Instead, they must continuously swim to force water over their gills (obligate ram ventilation). Some examples
Do Sharks Sleep? | Britannica
Carcharodon carcharias stock image for sale, available for publication in editorial and commercial projects, Guadalupe Island Biosphere Reserve | Marine Photography by Brandon Cole
Why do sharks continually swim? - Quora
Do Sharks Sleep? - Oregon Coast Aquarium
Must Sharks Keep Swimming to Stay Alive | Sharks | Live Science
Types of Shark by Ben Edwards
Will a shark drown if it stops moving? | HowStuffWorks
How Fish Breathe: Ram Ventilation, Buccal Pumping – Poseidon's Web
Body types in sharks (after Thomson and Simanek, 1977). | Download Scientific Diagram
10 Facts That Will Change How You View Sharks - Listverse
Leo Chan Gaskins (he/him) on Twitter: "Lemon Sharks (Negaprion brevirostris) are very adaptive! Sharks have two ways to breathe - either obligate ram ventilation (must swim to breathe to get water past
How Fish Breathe: Ram Ventilation, Buccal Pumping – Poseidon's Web
Shark - Wikipedia
How Fish Breathe: Ram Ventilation, Buccal Pumping – Poseidon's Web
Warm blood gives sharks and tunas superspeed - BioWeb.ie
Re:Focus: Obligate Ram Ventilation
NOVA Online | Island of the Sharks | Exploding Myths (2)
Do Fish Use Ram Ventilation - BikeHike
