Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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One litter of kittens can be produced by more than one father.
57
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
10