A group of pugs is called a grumble.
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There's a lizard known as the 'Jesus Lizard' that can run across water.
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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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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.
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During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
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Gorillas can catch human colds and other illnesses.
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When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
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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.
9