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 »

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How Wasps Work

Despite the fact you'll never find anything called "wasp honey," wasps perform a vital service by helping to pollinate the world's plant life -- and eliminate various six- and eight-legged pests.

videos: all kinds of insects

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How Butterflies Work

If you've seen a butterfly in your lifetime, you probably noticed their colorful wings, or maybe you saw one basking in the sunlight from a tree branch. But I bet you didn't realize that the butterfly you saw would soon die. Why are their life spans so short, and are butterflies on their way to extinction?

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Spider Facts

Love 'em or hate 'em, you've got to admit that spiders are some pretty impressive, well-equipped animals. They have a top-notch sensor array, a built-in construction set, a heavily armored body and a highly effective venom-injection system. How many other creatures can claim that?