Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
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Dolphins have names for one another.
18
A group of pugs is called a grumble.
10
When cats are happy, they may squeeze their eyes shut.
10
A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
10