The pea aphid insect explodes itself thereby sacrificing its life to protect its relatives from predators.
3
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
In 2013, the Netherlands scheduled 19 prisons to be closed due to a lack of criminals.
39