Which Spiders Have 8 Eyes?
WouterSpiders are animals that have special adaptations to find food. For example, they need to be able to detect movement all around them. They also have an elaborate visual system that lets them gauge distance. In addition, they can detect ultraviolet light.
A spider’s eyes are arranged in two rows. Each row consists of two sets of eyes, each with its own special task. The first set of eyes is the principal eye. This eye is often the largest on the spider’s head, giving the spider good vision. The other sets of eyes are secondary eyes. These eyes may be positioned on the front, side, or back of the head. They are smaller than the primary eyes and lack muscles. These eyes are specialized to help the spider gauge distance and to detect movement.
The second set of eyes are the Anterior Lateral Eyes. These eyes are forward-facing and have a larger field of view. They are used to detect movement and to alert the spider of potential dangers.
There are also some spider species that do not have eyes at all. These include the arachnids Sinopoda Scurion and Telemidae. Both species have evolved to adapt to living in caves.
Although the number of eyes can vary, most spiders have eight. They can also have as many as 12 or as few as six. In fact, some species, such as spitting spiders, have only six. In some families, such as Symphytognathidae, they have fewer than eight. However, they are still capable of hunting prey.
