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 image by Chris (@bug_lover) with caption : "144: Giant Water Bug Resiration
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So this is what I studied in grad school - how giant water bug adults and their eggs " - 2051280936927891579
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144: Giant Water Bug Resiration ⠀⠀ So this is what I studied in grad school - how giant water bug adults and their eggs breathe. This particular species is Abedus herberti and I learned that they can stay underwater longer if they expose the air bubble under their wings to the water and even longer when they move their abdomen up and down rhythmically to ventilate the bubble. These bugs typically stay underwater 20-30 minutes, but they CAN stay underwater a full three hours if they do all their behaviors! But, they also only do those behaviors when they’re deep enough that they can’t reach the surface without letting go of the bottom. Because they carry air with them underwater, they float immediately to the top when they let go. They don’t like to do that if they don’t have to, so they’ll start the behaviors when it’s more work to go to the surface and swim back down. If they can reach the surface, they just stick their butts out now and again to refill the air space, then settle back down. ⠀⠀ That’s right: I got a degree in entomology watching giant water bugs breathe. :) ——— #arthropodsanonymous via @preview.app