Scientists lit a cave of natural gas on fire in 1971 expecting it to only burn for a few days; it still burns to this day. It has been nicknamed "The Door to Hell".
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The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
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In Jurassic Park, the T-Rex wasn't supposed to come through and break the glass roof of the explorer during the attack scene, subsequently producing the noticeably genuine screams from the children.
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In Australia, there are spiders big enough to eat snakes.
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When you shave a guinea pig it looks like a little hippo.
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