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World's biggest spiderweb discovered inside 'Sulfur Cave' with 111,000 arachnids living in pitch blackA giant colonial spiderweb in a sulfuric cave on the border between Greece and Albania may be the largest ever found — and it was built by spiders we didn't know liked the company of others.
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Spiders seen keeping fireflies as glowing prisoners that draw more prey to their websThe fireflies are kept inside the webs for as long as they glow, before being consumed.
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Males of 4 never-before-seen tarantula species have record-long genitalia'Size really does matter' The males of four newfound tarantula species have extremely long genitalia so that they can keep their distance from aggressive females during mating, researchers say.
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Watch 1,000 baby spiders devour their mothers and aunties alive in stomach-turning, first-of-its-kind footageFootage from the BBC's new nature series "Parenthood" shows African social spiders committing matricide and cannibalizing their elderly relatives. Even Sir David Attenborough was horrified.
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'Backward' brain of ancient sea creature hints spider ancestors evolved in the oceanThe tiny 'backward' brain of an ancient sea creature hints that spider ancestors might have gotten their start in the ocean.
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Spider quiz: Test your web of knowledgeQuiz Are you an arach-nerd or just tangled? Take our spider quiz to find out!
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Cannibalistic spiderlings won't hunt their siblings even if they're starvingSocial signals stop young labyrinth spiders from hunting their siblings even when they are starving. However, the cannibalistic spiderlings quickly feed on the corpses of their brothers and sisters.
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Multiple species of ticks in the US can transmit red meat allergy, CDC reports revealA single bite from one of several tick species can trigger a months-long meat allergy.
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Asian hermit spider: The arachnid that gets stronger after ejecting its own penisFemale Asian hermit spiders gobble up their partners after mating, so males detach their penises and sometimes offer up an amputated leg to escape.
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