The cat brain weighs about 30g.
167
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
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
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
There's a lizard known as the 'Jesus Lizard' that can run across water.
11