Two dogs were among the Titanic survivors.
262
Cats recognise the voice of their owner, but never evolved to care.
22
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11
Dogs sometimes fake being sick to get attention.
26
Cows can sleep standing up, but they can only dream lying down.
745
The elephant brain weighs about 6,000g.
274
