The oldest recorded elephant lived for 82 years.
213
The oldest living person smoked cigarettes from the age of 21 to 117.
13
The lifespan of mammals is about 1 and a half billion heartbeats.
127
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5