Photos: Dragonfly

Today’s photos show a dragonfly perched on a twig in the sun. dragonflyThe dragonfly is an ectotherm, it is a cold-blooded creature whose body temperature is determined by its environment.

To regulate its body temperature, the dragonfly may either patrol, i.e. it flies back and forth and move its wings rapidly to  warm up its body, or perch, i.e. it positions itself on structures and expose its body to the sun’s rays. I read that the dragonfly can use its wings as reflectors, tilting them to direct the solar radiation toward its body. However, during hot spells, the dragonfly will use its wings to deflect the sun rays away from its body. dragonflydragonfly

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