Accenture: 8.10

Bees survive the long winter by forming a "winter ball" around the queen.

They do not hibernate, but produce heat energy by vibrating their wing muscles in a tight ball formation. They get the energy for this long process from the sugar that fills the hive. The picture shows how the bees have sealed the hive's roof.

Did you know that even in the harshest winter frosts, the temperature inside a beehive can exceed +25 degrees Celsius?