Gorillas can catch human colds and other illnesses.
205
Cats recognise the voice of their owner, but never evolved to care.
22
In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
22
Rattlesnake mating sessions have been known to last more than 22 hours.
232
Worker bees must visit around 4,000 flowers in order to make one tablespoon of honey.
5
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
Unsinkable Sam (nickname of a German ship's cat) who served on 3 warships, one German, two British, all sank in action. The cat survived each sinking, floating away on wooden planks to rescue.
19