Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
The human eye blinks an average of 4,200,000 times a year.
233
We share 70% of our DNA with a slug.
218
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
On average, there's 100 billion neurons in the human brain.
83