The lifespan of mammals is about 1 and a half billion heartbeats.
127
The smell of freshly cut grass is actually a plant distress call.
31
Parents receive 1 out of every 5 Valentines.
20
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
IMDb is one of the oldest websites on the internet, and began on Usenet in 1990 as a list of "actresses with beautiful eyes".
11
There is no mention of Adam and Eve eating an apple in the Bible.
79
The single biggest predictor of love is proximity.
30