Reptile & Amphibian Forums

My boss hands me a list of "fun facts." Last on the list was "Turtles can breath through their asses." I bet him ten bucks that this could just not be true and I really hope I'm right.

Can anyone shed any light on this for me as far as true or not true and details if it is true. It sounds rediculous to me but he shears it's true.

Please tell me I don't owe him ten bucks.

Thanks!

Strange, but true.

This adaptation may be best known among Australian sidneck turtles (Emydura, Elseya, Elusor, and Rheodytes). The Fitzroy turtle, Rheodytes leukops, may be the butt-breathing champ. It is able to obtain enough oxygen through its cloaca that it rarely surfaces to breathe the old-fashioned way.
For more:
http://www.zen.uq.edu.au/people/cfranklin/homepage/diving.html

Yeah, looks like your out 10 bucks. Turtles can breathe through there "asses" or cloaca. This is how they can stay under water without surfacing when hibernating. They slow there heart rate down so they need less oxygen, and just absorb oxygen from thier cloaca...
Chris
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Hey whats up, I'm Chris and I currently have 1.0 Softy, 0.0.1 Midland Painted, 1.0 Bearded Dragon

But do they actually breath through their digestive track or is it something different, because reptiles and amhibs don't just poop out their rear end, they've got all their mating supplies and other stuff stored down there too...

breath, or breathing:

Main Entry: breathe
Pronunciation: 'brE[th]
Function: verb
Inflected Form(s): breathed; breath·ing
Etymology: Middle English brethen, from breth
intransitive senses
1 a : to draw air into and expel it from the lungs : RESPIRE; broadly : to take in oxygen and give out carbon dioxide through natural processes b : to inhale and exhale freely
2 : LIVE
3 a obsolete : to emit a fragrance or aura b : to become perceptible : be expressed
4 : to pause and rest before continuing
5 : to blow softly
6 : to feel free of restraint
7 of wine : to develop flavor and bouquet by exposure to air
8 a : to permit passage of air or vapor b of an internal combustion engine : to use air to support combustion
transitive senses
1 a : to send out by exhaling b : to instill by or as if by breathing
2 : to give rest from exertion to
3 : to take in in breathing
4 : to inhale and exhale
5 a : UTTER, EXPRESS b : to make manifest : EVINCE
- breathe down one's neck 1 : to threaten especially in attack or pursuit 2 : to keep one under close or constant surveillance
- breathe easily or breathe freely : to enjoy relief (as from pressure or danger)

Turtles can indeed absorb O2 via the cloaca (as a natural process too). Now, you wouldn't be trying to find a "loop hole" would you? I guess you need to fork over the 10 dineros, or at least take the man to lunch for some fascinating conversation!

Nah,
it depends upon your definition source.
That one is heavily mamalian-biased.
What you one say about amphibians and fishes?
"respiration" might be the over all term but my guess i anyone who thinks that things even MIGHT be able to "breathe" (yes it has an "e" through any other body part has not considered that lungs are fundamental to the definition.

However, I find some people willing to ague anything, regardless of the origins. Highy mammalian you say? Well, I am very curious as to how you define breathing, since you obviously disagree with the account Merriam-Webster gives us.

For those who wish to implore further into the concept of cloacal breathing, read on!

How turtles breathe, how they pull in their heads--these are worthy topics. But when you get to whether turtles can breathe through their butts, that's when you know you're on the cutting edge of science. We turned to George Angehr, Smithsonian ornithologist and Straight Dope curator of critters. His reply:

"With an ancestry going back more than 200 million years to the late Triassic, the 200 or so species of turtles are the most ancient surviving lineage of land vertebrates. They are also one of the most distinctive life forms on the planet. My herpetology professor started his 'Identification Key to the Reptiles' with the couplet: 'A. Turtles. Any damn fool knows a turtle. B. Other reptiles.'

"The most notable turtle characteristic is the rigid shell, which is composed of the flattened and fused ribs and vertebrae, plus bony elements that don't exist in other vertebrates. Also unlike other vertebrates, the shoulder and hip girdles of turtles are located within the rib cage, instead of outside it. Many turtles partly compensate for the rigidity of the body by having exceptionally flexible necks. The two main groups of turtles are distinguished by the way they pull the neck back into the body. Most species belong to the cryptodire ('hidden-neck') branch, which can fold the neck in an S-bend in the vertical plane to fully retract the head. The pleurodires ('side-neck'), two families restricted to South America, Africa, and Australia, can only bend the neck back against the body in the horizontal plane, leaving it partly exposed.

"The rigid rib cage also places restrictions on breathing. Turtles have two special sets of respiratory muscles. One set pulls the body contents outward, toward the openings at the front and rear of the shell. This expands the body cavity and draws air into the lungs, which are located in the top part of the shell. The other pushes the viscera up against the lungs to expel the air. This system has the drawback that both inhalation and exhalation require energy--in most vertebrates, elastic energy can be recovered from the rib cage so that exhalation requires little exertion.

"Turtles have extraordinary anaerobic capacity--they have survived up to 33 hours in a pure nitrogen atmosphere. (Most reptiles have a high anaerobic capacity compared to mammals, but even they can't survive much more than 30 minutes without oxygen.) Although basically air-breathing, many aquatic species have developed ways to pick up oxygen even when submerged. Of these the most remarkable, which some turtles share with dragonfly nymphs, sea cucumbers, and certain televangelists, is the ability to breathe through one's butt. You've heard the expression ‘Blow it out your after regions?’ It's no mere figure of speech. Many species have a pair of sacs (bursae) opening off the cloaca (combined digestive and urogenital chamber). These are heavily vascularized to facilitate the uptake of oxygen.

"The champion in this regard seems to be the recently discovered (1973) Fitzroy River turtle Rheodytes leukops ('white-eyed stream-diver'), which is confined to its namesake river in Queensland, Australia. It lives in shallow rapids where the water is highly oxygenated. One can detect the keen sense of discovery in the account by the scientists who found it, John Legler and John Cann: 'One of our vivid early impressions of Rheodytes was that adults of both sexes swam with a widely gaping cloacal orifice (up to 30mm in diameter). The orifice remains open when individuals are out of the water. We first became aware of the large cloacal bursae when a female was examined in bright sunlight; the carapace transmitted enough light to illuminate the coelomic cavity and produce a spectacular view internally for at least 100mm, via the cloaca, revealing a large sac lined with vascular, villose mucosa. . . . Water is pumped in and out of the bursae of captives and experimental animals at rates of 15 to 60 times per minute' (Legler and Cann 1980). Only dedicated herpetologists could characterize the vista up a turtle's gaping bunghole as a 'spectacular view.' But you can understand their enthusiasm--since the turtle's shell is only 260 millimeters long, a 100-millimeter-long bursa is relatively enormous. Up to 68 percent of the turtle's oxygen uptake is accomplished through the cloacal bursae, so it rarely needs to come to the surface to bask or breathe.

"Find the subject of butt-breathers fascinating? Then here’s some more info: Dragonfly nymphs, which are aquatic, take water in through the rectum and absorb oxygen through gill-like structures in the hindgut. They can also travel by jet-propulsion by expelling a powerful stream of water from their rear end. Sea cucumbers, related to starfish, have elaborate respiratory trees branching from the end of the digestive tract, through which they breathe. They also use the anus in self defense. Some can shoot out sticky threads that can entangle an enemy. Others actually disembowel themselves when disturbed: they eject the digestive tract and respiratory tract from the anus. The innards crawl around by themselves for awhile outside the animal, and as they are sticky they can also entangle an attacker. The sea cucumber then blithely crawls off to regenerate its digestive tract."

Regards,

Jeff

Jeff Snodgres
University of Arkansas
snodgresjeffreys@uams.edu
501.526.4856

I'm not trying to get out of it, I alrerady gave him the ten. I see how they can use the oxygen brought in from the cloaca, but i just want to make it clear to my boss that turtles dont get oxygen from the same system that they poop out of, you know? That it's not technically an "ass"...

I saw the same sheet of strange facts and denounced it for the "fact" that not ALL turtles are butt breathers. I assume its only aquatic turtles, right? the nefarious facts suggest that all turtles are rectal respirators.
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HAHA! RECTAL RESPIRATORS!! GENIUS!