The largest earthworm on record was found in South Africa and measured 22 feet.
151
When cats are happy, they may squeeze their eyes shut.
10
Cats sleep for 70% of their lives.
8
Cats and dogs can hear ultrasound.
350
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Lobsters have blue blood.
476
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16