"Turn the air conditioner on, its a scorcher out there. When honeybee hives get too hot, thirsty bees beg their specialised, water-foraging sisters for more liquid, which ends up cooling the colony. Honeybees have a few strategies for chilling out: some fan the nest, others leave the hive to increase air flow, and a few zip off looking for ponds or puddles. These water collector bees fill their bellies with water, fly back home, then regurgitate the liquid. Other bees slurp it up and spit it out around the hive, allowing the colony to cool as the water evaporates. ...."
Read more here: The New Scientist