Dolphins have names for one another.
18
Worker bees must visit around 4,000 flowers in order to make one tablespoon of honey.
5
Dogs sometimes fake being sick to get attention.
26
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
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 elephant brain weighs about 6,000g.
274