This Is How Beetles Breathe Underwater

by Owen James Burke

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Screenshot from the video below.

Beetles and other bugs can’t hold their breath the same way humans do, so those that rely on submarine food sources carry air with them underwater, thanks to surface tension.

The beetle gathers air and forms a bubble with its outer wings while on the surface, dragging it down as it dives to hunt for food. When the bubble runs low, the beetle simply lets go of what’s left and returns topside for another.

Learn more on PBS’ Deep Look below.

–OJB

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