Fleas can pull 160,000 times their own weight, which is like you pulling 2,679 double-decker buses.
A flea can jump 30,000 times without stopping.
Female cat fleas can drink 15 times their weight in blood.
Fleas don't have ears and are virtually blind.
Fleas can transmit diseases to humans. Fleas jumping from rats to humans transmitted the cause of the Black Plague in 1664, killing 70,000 people in London.
The average flea is 2-3 mm long and weighs half a grain (equivalent to 32 milligrams or 0.03 grams). The world's biggest is the beaver flea, which reaches about 11mm.
Fleas reverse direction with every jump.
Flea larvae don't like the light so they move away from it, deep into carpets, cracks in flooring or any nook or cranny.
In a Kiev museum, there's a flea that wears horseshoes made of real gold.
When a flea jumps, it accelerates 50 times faster than a space shuttle.
Fleas can lay up to 1,500 eggs in a lifetime.
Flea brides and grooms (dressed, but dead) were popular collector’s items in the 1920s.
Flea pupae can live for up to 1 year in homes.
Fleas can jump over 150 times their own size (approximately 30cm high) - which is like you jumping over St Paul's Cathedral.
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