Migrating birds take hundreds of powernaps
Migrating birds take hundreds of powernaps. To help make up for sleep lost during marathon night flights, migratory birds take hundreds of powernaps during the day, each lasting only a few seconds.
Migrating birds take hundreds of powernaps. To help make up for sleep lost during marathon night flights, migratory birds take hundreds of powernaps during the day, each lasting only a few seconds.