Basics

What Makes a Spider a Spider?

Hi! So, let’s talk spiders. First things first—spiders are not insects. Nope! Insects have 6 legs, but spiders have 8 legs. They also don’t have wings or antennae. Spiders belong to a special group of animals called arachnids. That’s a big word, but it just means “eight-legged creatures,” and includes scorpions, ticks, and mites too.

A spider’s body is split into two parts. The front part is called the cephalothorax (say: sef-a-low-thor-ax). That’s where the eyes, mouth, brain, and legs are. The back part is called the abdomen, and that’s where they keep their heart, stomach, and spinnerets (that’s what they use to make silk!).

Spiders don’t have bones like us. Instead, they have a hard outer shell called an exoskeleton that keeps them safe and helps hold their shape.

Now let’s talk about how they eat. Spiders don’t have jaws like we do. They use fangs to bite their prey (that means bugs or small animals they catch). When they bite, they sometimes inject venom to stop the bug from moving. Then they squirt out digestive juices—basically spit—that turns the insides of the bug into a kind of mushy soup. Then they suck it up. Sounds gross, but that’s how spiders get their food!

Do spiders bite people? Most spiders don’t want to bother you. They don’t even like people! They might bite if they’re scared, but even then, most spider bites won’t hurt more than a bee sting. Only a few spiders, like the black widow or brown recluse, can be dangerous—and they’re very shy and rare.

Where do spiders live? Spiders can live almost anywhere. You can find them in jungles, deserts, forests, caves, your garden—and yes, sometimes your house! Most of the time, they’re helping you by eating bugs you don’t want.

Spiders have been around a long time. Fossils show that spiders have existed for more than 300 million years, way before dinosaurs! That’s older than most animals alive today.

So even if they seem a little creepy, spiders are amazing creatures with special powers that help them survive, hunt, and even protect your home from pesky insects.