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Résumé :
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They are small, only come out at night, are silent (to humans), and can fly hundreds of kilometers a night. These factors make studying migrating bats particularly difficult. But overcoming these challenges opens opportunities to better understand migration, a widespread phenomenon in the animal kingdom. Comparative studies across taxa can offer insights into general rules that govern how animals interact with their environments, and species-specific studies can provide key information for developing effective conservation strategies. On page 97 in this issue of Science, Hurme et al. (1) report the use of new Internet of Things technology to investigate movement patterns of migratory bats, the influence of weather, and trade-offs that bats face in decisions about the timing and energetic cost of long-distance flights.
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