The octopus does not have a blind spot.
273
The head of a jellyfish is called the "Bell."
6
When cats are happy, they may squeeze their eyes shut.
10
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
Cats recognise the voice of their owner, but never evolved to care.
22
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
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 ancestor of all domestic cats is the African Wild Cat which still exists today.
12