However, wolves hunt in packs but spiders are solitary animals.

The principal and secondary eyes in spiders are arranged in four or more pairs.

In most spiders the spiracle is just anterior to the spinnerets.

Extreme sexual size dimorphism, with females larger than males, is quite common in spiders.

In spiders, though, the female sometimes assists the process.

The process may take minutes in small spiders, or some hours in the larger Mygalomorphs.

The cave also contains considerable numbers of invertebrates, in particular beetles and spiders.

The cribellum is a silk spinning organ found in certain spiders.

He also studied visual behaviour in spiders and insects, particularly during pursuit.

These conditions contribute to possible explanations for the sexual selection of body size in male spiders.