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.

Saturn's rings are made mostly of chunks of ice and rock.

Your skin is the largest organ of your body.