Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Dogs sometimes fake being sick to get attention.
26
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24
Domestic pigs average a top speed of about 11 miles per hour.
182
The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
328