Rattlesnake mating sessions have been known to last more than 22 hours.
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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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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
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A group of pugs is called a grumble.
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Nicole Kidman is scared of butterflies.
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