What type of light do bees utilize on cloudy days?

Bees utilize ultraviolet light on cloudy days, which is essential for their foraging and navigation. Unlike humans, who primarily see in the visible spectrum, bees can perceive ultraviolet wavelengths that are invisible to us. This ability allows them to locate flowers more easily, as many plants reflect UV light to help guide pollinators to their nectar.

On cloudy days, visible light can be scattered and diminished, making it harder for bees to rely solely on this spectrum for navigation. However, ultraviolet light remains relatively consistent even under such conditions, enabling bees to continue their foraging activities effectively. This adaptation is critical for their survival and ensures that they can maintain their role in pollination regardless of the weather.

In contrast, options like infrared, which is associated with heat rather than visible cues, and X-rays, which are harmful and not suitable for vision, do not play a role in bee navigation.