Long-ignored, high-flying arthropods could make up largest land migrations
Each year, 3.5 trillion aphids, moths, flies and their kin fly over southern United Kingdom
![ladybug](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/12/122216_SM_insect-migration_main_free.jpg?fit=860%2C460&ssl=1)
OVERLOOKED OVERHEAD Adding up ladybugs (seven-spotted species shown) and other high-flying insects and their kin that travel overhead each year reveals what could be the biggest migration of land animals on the planet.
Leviathan1983/wikimedia commons (CC BY-SA 3.0)