If the human eye was a digital camera, it would have 576 megapixels.
25
We share 70% of our DNA with a slug.
218
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Only humans shed emotional tears.
331
Tigers can see 6 times better at night than humans.
305
Your heart will pump about 212 million liters in its lifetime.
26
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23