When dragonflies mate, their tails form a love heart.
22
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9
Cats sleep for 70% of their lives.
8
Domestic pigs average a top speed of about 11 miles per hour.
182
The most expensive cow in the world was sold in 2009 for $1.2 million.
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A cow produces around 200,000 glasses of milk in her lifetime.
373