Image of the day

Oct 15, 2019
The globe skimmers return
© Azwar Thaufeeq/500px/Getty Images
This time of year, millions of dragonflies are returning to the Maldives, a stage in the longest insect migration in the world. Flying thousands of miles across the open ocean, these dragonflies are known as globe skimmers, which refers to their migratory behavior. Until about 20 years ago, no one knew where they came from. But researchers have since discovered that the dragonflies take advantage of moving weather systems and monsoon rains to make their epic migration across the Arabian Sea from India. From the Maldives, the dragonflies will continue their journey, passing through the Seychelles and then on to East Africa.
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Quick fact:The stained-glass look of a dragonfly’s wing comes from the veins that carry hemolymph, which is analogous to blood in vertebrates.
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