Mushrooms are more closely related to humans than they are to plants.
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Pain occurs when sounds are above 130 db.
124
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
A human being loses an average of 40 to 100 strands of hair a day.
133
You forget 90% of your dreams.
256
Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21