How do flies stay cool on hot days if they can't sweat?
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How do flies stay cool on hot days if they can't sweat? 🤨
They blow bubbles of watery saliva; some of it evaporates & loses heat; they then re-ingest the cooler liquid.
Simple
️Two flies seen at it this evening: a lesser dung fly (Sepsis fulgens;
Glänzende Schwingfliege) & a fruit fly (Scaptomyza pallida; Taufliege).#Heidelberg
#Photography
️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️
#BugOfTheDay
#MacroPhotography
#InsectsOfMastodon 🪰
#BackGardenEntomology 🪲 -
How do flies stay cool on hot days if they can't sweat? 🤨
They blow bubbles of watery saliva; some of it evaporates & loses heat; they then re-ingest the cooler liquid.
Simple
️Two flies seen at it this evening: a lesser dung fly (Sepsis fulgens;
Glänzende Schwingfliege) & a fruit fly (Scaptomyza pallida; Taufliege).#Heidelberg
#Photography️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️
#BugOfTheDay
#MacroPhotography
#InsectsOfMastodon 🪰
#BackGardenEntomology 🪲That said, it wasn't particularly warm today, & less so this evening as the cloud rolled in. It was humid still though.
The Sepsis fulgens fly was going through a whole preening process at the same time as the droplet of water was hanging from its mouth, turning in circles, & cleaning its wings with its legs.
Then it sucked in the water droplet & flew off
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How do flies stay cool on hot days if they can't sweat? 🤨
They blow bubbles of watery saliva; some of it evaporates & loses heat; they then re-ingest the cooler liquid.
Simple
️Two flies seen at it this evening: a lesser dung fly (Sepsis fulgens;
Glänzende Schwingfliege) & a fruit fly (Scaptomyza pallida; Taufliege).#Heidelberg
#Photography️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️
#BugOfTheDay
#MacroPhotography
#InsectsOfMastodon 🪰
#BackGardenEntomology 🪲dipterans are so damn odd
They inflate their heads and eyes.
Just strange as can be.
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That said, it wasn't particularly warm today, & less so this evening as the cloud rolled in. It was humid still though.
The Sepsis fulgens fly was going through a whole preening process at the same time as the droplet of water was hanging from its mouth, turning in circles, & cleaning its wings with its legs.
Then it sucked in the water droplet & flew off
️@markmccaughrean I got fascinated withspiracles recently, and it strikes me that this behavior re temperature and water takes advantage of some of the same geometry & math that make spiracles work for air/oxygen.
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dipterans are so damn odd
They inflate their heads and eyes.
Just strange as can be.
@futurebird@sauropods.win @markmccaughrean@mastodon.social this is the mechanism of how bees manufacture honey
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How do flies stay cool on hot days if they can't sweat? 🤨
They blow bubbles of watery saliva; some of it evaporates & loses heat; they then re-ingest the cooler liquid.
Simple
️Two flies seen at it this evening: a lesser dung fly (Sepsis fulgens;
Glänzende Schwingfliege) & a fruit fly (Scaptomyza pallida; Taufliege).#Heidelberg
#Photography️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️
#BugOfTheDay
#MacroPhotography
#InsectsOfMastodon 🪰
#BackGardenEntomology 🪲Very cool (pun intended).
Would it be possible to measure the decrease in temperature?
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Very cool (pun intended).
Would it be possible to measure the decrease in temperature?
@katzenberger I'm sure someone has done it – perhaps a thermal-IR camera with a good lens could give a result.
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@futurebird@sauropods.win @markmccaughrean@mastodon.social this is the mechanism of how bees manufacture honey
@u0421793 @futurebird Indeed, although bees use active air conditioning (their wings) to get evaporation going, while the flies are passive
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A abekonge@venner.network shared this topic
