Oceans
Male orca whales have a life expectancy of 50 - 60 years, what is the life expectancy of female orca whales?
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How many inches thick from infancy to maturity is the blubber of a blue whale?
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What is the term for a lake that is permanently covered by ice?
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Of all marine crustaceans caught by humans each year, crabs make up what percent?
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What is the name of a humpback whale in the South Pacific Ocean that was tracked online by Greenpeace?
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What happens to a goldfish when its kept in the dark?
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