Bees actually have five eyes: two compound eyes and three simple eyes, called ocelli. The two compound eyes are those huge brown-black ovals that seem to take up most of their tiny heads ...

Bees possess five eyes. The three ocelli are simple eyes that discern light intensity, while each of the two large compound eyes contains about 6,900 facets and is well suited for detecting movement.

Look closely at the head of a bee and you’ll see three tiny nubs like glassy marbles perched high between their large, faceted eyes. Though incapable of forming images, these “ocelli” track ...