In 1899, it was so cold that the Mississippi River froze over its entire length.
Arrowroot, an antidote for poisoned arrows, is used as a thickener in cooking (so if you ever get shot with a poison arrow, do not go to a doctor, look in your kitchen cabinet.
The dragonfly has about 30,000 lenses covering the retina of its eye, and thus sees many, many images where we see only one.
The coldest temperature ever measured on Earth was -129 Fahrenheit (-89 Celsius) at Vostok, Antarctica, on July 21, 1983.
Until 1883, hemp was the world's largest agricultural crop, from which the majority of fabric, soap, paper, medicines, were produced.
Less than one percent of the tropical rainforest species have been analyzed for their medicinal value.
A cubic mile of ordinary fog contains less than a gallon of water.
Tomatoes are very high in the carotenoid Lycopene; eating foods with carotenoids can lower your risk of cancer.
The world's tallest tree is a coast redwood in California, measuring more than 360 ft or 110 m.
here are many different shapes and colors of leaves. Click this link to see leaves of different shapes and colors!