An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
Yawns are more contagious among people with closer relationships.
163
A cow produces around 200,000 glasses of milk in her lifetime.
373
The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
Ants tend to survive in a microwave because they find the coolest spot and wait!
17
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255