what's inside: insects & arachnids

Insects and arachnids are the most popular wild animal on Earth. Read our collection of articles discussing all sorts of ants, bugs, butterflies, spiders and just about every other type of insect and arachnid.

Insects

Insects

While there are a million different types of insects, all have a hard exoskeleton which is segmented into three parts. In fact the word "insect" is derived from the Latin meaning segmented. See more »

Arachnids

Arachnids

Arachnids have four pairs of jointed legs, two body sections and simple eyes. Arachnids are aggressive predators and include spiders, scorpions, mites and ticks. See more »

featured articles

FPO

How Spiders Work

Love 'em or hate 'em, you've got to admit that spiders are some pretty impressive animals. Movies like "Arachnophobia", "Spider-Man" and "Eight Legged Freaks" even spin their stories around spiders. Check out the real-life web-slinging, wall-crawling, venom-injecting inspiration.

videos: all kinds of insects

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How Fleas Work

Fleas have three real talents – eating, breeding and waiting. If you leave your home and take your pets with you, any fleas inside will just wait for you to return so they can get back to eating blood and making babies.

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How Houseflies Work

Swat it, smash it, spray it. It's tough to get rid of the world's most annoying roommate: the housefly. But at least the housefly won't steal your food -- whoops, never mind.