The largest earthworm on record was found in South Africa and measured 22 feet.
151
Your thumb is about the same size as your nose.
124
By weight, Bone is five times stronger than steel.
417
Mentally doing a task makes you better at it. Your mind can barely tell the difference.
18
Summer on Uranus lasts for 21 years.
358
Penguins have a gland above their eye that turns saltwater into freshwater.
12
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165