Air-conditioned beehives

Amazingly, although beehives are not equiped with air-conditioners, they have their own mechanism to cool the hives when temperature rises. To cool the hive, one group of bees station themself at the entrance while another remain inside. The bees then flap their wings simultaneously at high speep, even up to 400 flaps per second. This creats a cross-ventilation that exhausts the hot air out of the hive and pulls the cool air in, thus conditioning the air.