Domestic pigs average a top speed of about 11 miles per hour.
182
Cats recognise the voice of their owner, but never evolved to care.
22
A puppy is born blind, deaf, and toothless.
16
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2
The oldest recorded elephant lived for 82 years.
213