The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
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 elephant brain weighs about 6,000g.
274
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
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109