The geoduck clam has a neck (siphon) up to a meter long — and can live for over 150 years.
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The Earth's core generates geothermal heat.
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Extreme droughts can last for years.
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Some fish can survive in near-freezing water.
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The human body is about 60% water.
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The human body produces heat through metabolism.
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The human brain contains roughly 86 billion neurons.
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