What is the scariest thing about spiders?

33 Totally Creepy Facts About Spiders That Will Give You Goosebumps Spiders can prey on bats, too. Climate change is making spiders bigger. The world's oldest spider lived to be 43. Female spiders will sacrifice themselves for their young. Spiders' brains are huge. Some spiders look like ants. Spiders are not insects.

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And another question, what do spiders help humans with?

They're essential for the ecosystem too. They eat bugs that feast on our crops such as aphids and caterpillars. According to spider expert Norman Platnick from the American Museum of Natural History, there would be a 'famine' without them. Are spiders bad for house? "The majority of spiders in and around the home are pretty harmless," Dr. Campbell says. "They're not really going to fight unless they're aggravated. And they are predators, so they will prey on other insects inside the home and potentially pest species inside of your house as well."

And another question, what does it mean when you dream about a swarm of spiders?

Feeling Extremely Overwhelme. The sight of spiders can provoke fear, so it's not surprising that they can represent problems stemming from panic and anxiety. Some people dream of swarms of spiders all around them, effectively paralyzing them, which leads to feeling trapped and hopeless.