Most spiders have eight eyes, though some species have six or fewer.

The longer version

Eight eyes give many spiders a wide field of view without needing to turn a head that is fixed to the body. The eyes are usually arranged in two rows, with the front pair often larger and better at forming detail while side pairs specialise in detecting movement.

Hunting species that chase prey tend to rely more on those larger forward eyes, whereas web builders often depend on vibration and touch. Some animals living in caves or leaf litter have lost eyes entirely over time, since good vision costs energy and dark habitats reward other senses instead.

Where this entry sits

This collection gathers small wonders from the world of ants, bees, butterflies, beetles, and spiders. Expect surprising details about swarms, silk, and metamorphosis, plus the strange everyday abilities of creatures small enough to fit on a fingertip. The full list sits on the Insects and Spiders page, where every entry is listed in order.