Peanuts are actually part of the legume family, and are more closely related to peas than nuts.

Fruits form from the ovaries of flowers.

Most glaciers in the Northern Hemisphere come from the ice in Greenland.

The Great Salt Lake is 4 to 7 times saltier than the ocean.

A carrot is actually a large central type of root called a taproot. Other edible taproots include beets and radishes.

The Gulf of Mexico is the largest gulf in the world.

Oxygen exits leaves through holes called stomata; these are so small that tens of thousands may be on a leaf section the size of a quarter.

The Arctic tern is known as the "migration champion of the world," flying over 11,000 miles from the Arctic to Antarctica.

The gastrocnemius is the calf muscle, and the latissimus dorsi is the lower back muscle.

Tropical rain is the only form of precipitation that does not begin as an ice crystal. Instead, it forms from water vapor condensing around a particle of sea salt.