Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
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Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
A group of unicorns is called a blessing.
304
The elephant brain weighs about 6,000g.
274
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492
Moths are unable to fly during an earthquake.
328
Cats recognise the voice of their owner, but never evolved to care.
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