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How many lenses does a dragonfly’s eye have? Which is bigger, an eagle’s eye or a human’s? How many eyes does a scallop have? How do lizards keep their ey

Our eyes are round objects that sit at the halfway point of our head. They are about one inch (25 mm) in diameter and come in a variety of colors. They allow us

Huge blue whales inhabit our oceans. Scientists are studying them and learning more and more about them all the time. They have learned many things, but how muc

How much of America’s rainfall ends up in the Mississippi River? Which mountain range grew around the Danube River? Are there more kinds of fish in the Amazon

Huge blue whales inhabit our oceans. Scientists are studying them and learning more and more about them all the time. They have learned many things, but how muc