It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
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Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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In 2005, in Africa, it was reported that three lions rescued a 12-year-old girl from kidnappers and guarded her for half a day until help came.
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Dolphins have names for one another.
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Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
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Lurch, a Watusi bull, had the largest horns in the world.
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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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