How many ocelli do bees possess?

Bees possess three ocelli, which are simple eyes located on the top of their heads. These ocelli are distinct from the compound eyes that bees use for seeing detailed images. The primary function of the ocelli is to help bees detect light intensity and assist in maintaining stability during flight, especially when navigating in low-light conditions. They contribute to the bee's ability to orient itself and maintain a stable flight path, making them essential for their overall navigation and foraging abilities. This anatomical feature is common across many species of insects and highlights the evolutionary adaptations that support the lifestyle and survival of bees in their environments.