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Size varies greatly by species. The smallest adult Spiders are only 1 to 2 mm in length, while the largest ones (the Goliath tarantula and Giant Huntsman) can reach a length of 30 cm (1 foot) and weigh hundreds of times as much.

Specimens have also been identified of a rare Samoan spider that grows to be less than half a millimeter long (0.43 mm), the smallest known spiders in the world.

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12y ago

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