The elephant brain weighs about 6,000g.
274
Early American humans hunted car-size armadillos and used their shells for houses.
12
Cats recognise the voice of their owner, but never evolved to care.
22
The oldest recorded elephant lived for 82 years.
213
Two dogs were among the Titanic survivors.
262
In 2005, in Africa, it was reported that three lions rescued a 12-year-old girl from kidnappers and guarded her for half a day until help came.
46
A giraffe's kick is so powerful that it can decapitate a lion.
216