The largest flower in the world, the rafflesia, can be over 3 feet wide.

The Sahara Desert is about the same size as the United States.

Stegosaurus was as big as a bus but had a brain about the size of a walnut.

ENIAC, one of the first electronic computers, weighed about 30 tons.

Pineapples take about two years to grow.

A group of pandas is sometimes called an embarrassment.

An elephant's trunk has tens of thousands of muscles.