A puppy is born blind, deaf, and toothless.
16
The elephant brain weighs about 6,000g.
274
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
The octopus does not have a blind spot.
273
Cats recognise the voice of their owner, but never evolved to care.
22
Cats sleep for 70% of their lives.
8
The head of a jellyfish is called the "Bell."
6