Passengers on the Beijing subway can pay with plastic bottles.
29
Mushrooms are more closely related to humans than they are to plants.
47
Approximately 60% of the water used by households during the summer is used for watering flowers and lawns.
79
On average, a disposable diaper can hold up to 7 pounds of liquid.
22
Diamonds mined in Brazil are harder than those found in Africa.
40
Couples' personalities converge over time to make partners more and more similar.
235
