If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Pain occurs when sounds are above 130 db.
124
The human brain has the capacity to store everything that you experience.
4k
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
The average sperm cell swims at 8 inches per hour.
4
Your heart will pump about 212 million liters in its lifetime.
26
Your thumb is about the same size as your nose.
124