Despite their intimidating size, joro spiders are not aggressive, and their venom is not lethal to humans or pets. Joro spiders have small fangs that would make it difficult for them to pierce human skin, and a successful bite is generally only mildly painful and may result in redness. Considered βshy,β the spiders typically do not enter human homes or buildings, and are known to sit completely motionless for long periods of time when frightened or disturbed.
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