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 cat brain weighs about 30g.
167
Condoms were originally made of animal intestines or linen.
347
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
Dogs sometimes fake being sick to get attention.
26
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5