February 26 is National Pistachio Day. How much do you know about Pistachios? Did you know that:

Pistachios grow on trees, each one producing an average of 50,000 nuts every two years.
Pistachios have existed for 80 million years.
Each nut weights around 1 gram.
Iran is the world’s leading grower of pistachios.
Most pistachios sold in the United States come from California, whose pistachio industry began in 1976.
Pistachios turn golden yellow or red when ripe and pop open by themselves.
(photo © Monica Adamazyk/Dreamstime.com)