points: 13

dragonfly nymph

The ability of a dragonfly nymph to successfully snatch and grab food is directly related to its anus. The mouth-grabber (labium) is hydraulically activated. The dragonfly draws water in through the anus, clenches, then compresses its abdominal and thoracic muscles against the water-filled rectal chamber. This raises the internal body cavity pressure, and pushes the labium out –in a strike that takes 10 to 30 milliseconds. The amount of internal pressure generated is about 6000 Pa, or 6 kPa; equivalent to 0.87 psi (pounds per square inch). That doesn’t seem like a lot, until you consider that big nymphs only weigh 100mg (0.0002 lbs), so generating almost a pound of pressure WITH THEIR BUTT is pretty impressive. A Camaro turbocharger produces 7 psi, so you could say this little insect has 1/7th of a Camaro in its ass. The other amazing function of a dragonfly nymph rectum is jet-propulsion. By un-clenching their rectum, water in the rectal chamber can be jetted out at high pressure, pushing the nymph forward through the water. The forward thrust generated is 1.5 g in 0.1 second; nymphs’ top speed is 10cm/second. They can throttle their rectum back to produce varying amounts of thrust through the water. But Wait! There’s More! The jet-propulsion butt-hydraulic system also is a gill. Dragonflies breathe through gills in their rectums; you can see some great photos of that above. Because dragonflies breathe through feathery gills, they are sensitive to lots of forms of aquatic pollution

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by Sealbasher

submitted October 31st 2015

24 comments
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dragonfly nymph
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comments (24)
fuck you im not reading all that fucking bollocks
2 years ago
if I wanted to read an epic id read the bible ... you idiot
2 years ago
interesting
2 years ago
this insect basicly gets by thanks to its ass. like many users here
2 years ago
I bet you can fit a whole Camaro up your ass
2 years ago
*Winnebago
2 years ago
*campervan
2 years ago
*scampervan
2 years ago
*Boeing 747
2 years ago
el chris: more ass than man.
2 years ago
Isn't it the dragonfly that just got its ass handed to it?
2 years ago
Inspiration for the movie Predator.
2 years ago
*Alien
2 years ago
tldr
2 years ago
pisdaisaf
2 years ago
sgfydh
2 years ago
Lol james t kirk is going to be proud of this description
2 years ago
Thank you sir Dickhead Assburg
2 years ago
Bugs a true asshole.
2 years ago
don't you have more of your dumb videos to upload
2 years ago
I love anus science (no homo)
2 years ago
(yes homo)*
2 years ago
your face is anus science
2 years ago
I do not come to Mucho to learn. Knock this shit off.
2 years ago
recover password
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