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14 of the greatest animal migrations

A dragonfly rests on a lily.

Photo: pheanix300/Flickr

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Dragonflies

Dragonflies are capable of long-distance migrations, but until recently, scientists had no idea how far they traveled. In 2009, scientists discovered a 14,000- to 18,000-kilometer dragonfly migration route that spanned from India to the Maldives, the Seychelles, Mozambique, Uganda and back again.

Incredibly, the epic migration spans four generations of dragonflies, with each generation playing its part in the journey much like a relay race. It is easily the longest insect migration ever discovered. The dragonflies appear to follow the rains, from the monsoon season in India to the rainy season in eastern and southern Africa.