It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
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Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
25
When dragonflies mate, their tails form a love heart.
22
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Two dogs were among the Titanic survivors.
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