In an interview with the Associated Press, Geant explained how the bees survived the fire, "Instead of killing them, the CO2 (from smoke) makes them drunk, puts them to sleep."
"When bees sense fire, they gorge themselves on honey and stay to protect their queen, who doesn't move," Geant continued. "I saw how big the flames were, so I immediately thought it was going to kill the bees. Even though they were 30 meters (about 100 feet) lower than the top roof, the wax in the hives melts at 63 degrees Celsius (145.4 Fahrenheit)."
Smoke is often used by beekeepers to sedate a bee colony when they need to get inside their hives, they can't die from the smoke due to the fact they don't have lungs. They can, however, die from the heat. And unlike other bees, European bees don't abandon their nests during danger, the AP reports.
Luckily, it all worked out as the bees and the hives remained fully intact.