Elephants, despite being the largest land mammals on the planet, display a genuine and documented fear of bees.
This apparent contradiction has solid scientific foundations and important evolutionary reasons. African bees can attack the most vulnerable spots on elephants: their eyes, the inside of their trunk, and other areas with thinner skin.
Elephants have developed a specific alarm system for bees. When they detect the characteristic buzz, they emit unique alarm vocalizations that warn the entire herd to move away from the area immediately. They even shake their heads vigorously and retreat in a protective formation.
This reaction is so consistent that African farmers have learned to use 'bee fences' to protect their crops from elephants, placing beehives around their fields as a non-lethal yet effective conservation method.
Source: African Wildlife Behavior