Most spiders have eight eyes. Some species have fewer, but they always have an even number. Despite having so many eyes, most spiders still can't see very well and rely on their sense of touch and smell to navigate their surroundings.
![The 8 eyes of a huntsman spider](https://www.science-sparks.com/wp-content/uploads/2023/10/Huntsman-spider-eyes-1024x737.jpeg)
Facts about spiders
Insects have large compound eyes (with multiple lenses), but spiders have simple, single-lens eyes.
Spiders produce silk using their spinnerets.
Most spiders are carnivorous and eat insects.
Spiders molt (lose their exoskeleton) instead of continually growing.
Arachnids have only two body parts: a cephalothorax and an abdomen.
In some species, female spiders eat the male after mating.
Spiders are arachnids, not insects.
Different types of spiders weave different types of webs.
Spiders are found on every continent except Antarctica.
Some species of spiders resemble ants, which helps them avoid predators.
If we compare by weight, spider silk is stronger than steel.
Spiders have four pairs of legs.
![Spider with 8 eyes](https://www.science-sparks.com/wp-content/uploads/2023/10/How-many-eyes-does-a-spider-have-683x1024.jpg)
Last updated on October 24, 2023 by Emma Vanstone
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