Fun Fact: Do you know what the largest organ in the hive is? It's the beeswax.
Recent studies have shown that the bees communicate through the wax by vibrations that they make with their bodies.
The wax also holds the warmth of bees' bodies and acts like an insulator to keep the incubating babies warm. One chore for workers is to be a Heater Bee.
A bee may look like she's just standing on a capped cell doing nothing but if you looked at it with an infrared camera that shows heat, you'll see she's pressing her thorax (chest) to the cell cap.
Then she contracts her flight muscles to transfer heat from her body to the wax which will warm up the cell and the baby pupae that's inside the cell.
They can stay in this squatted position for as long as 30 minutes. The worker will have her antennae resting on the cell which is believed so she can check the temperature through the sensitive antennae.