The most expensive cow in the world was sold in 2009 for $1.2 million.
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In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
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Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
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It has been estimated that a bite from a grizzly bear can crush a bowling ball.
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The male seahorse carries babies and 'gives birth' to them instead of the female.
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Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
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