Here's a math puzzler from the active mind of Otis Reedy. See if you can figure it out. Write your answer in your travel log, then click forward to the next page of the adventure. (Answers can be found in the Curriculum Connections pages for teachers under 'Math Connections'.)

"OK fellow insect lovers, you've heard of 'beetlemania,' right? If you're a beetles' fan, try this problem: There are approximately 320,000 different species of beetles on the earth, which constitutes 20% of all known animal species. Approximately, how many known animal species are there in the world?"

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