Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
Cats recognise the voice of their owner, but never evolved to care.
22
Cats and dogs can hear ultrasound.
350
Cats sleep for 70% of their lives.
8
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2