Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
A snail can sleep for three years.
40
Alligators can live up to 100 years.
337
All the swans in England are property of the Queen.
36
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
A domestic cat can sprint at about 31 miles per hour.
274
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
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8