14-Day Brush and Floss Streak
Brush twice and floss once every day for two weeks. Check in once a day.
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Animals · Facts & stats · iChallenge network
Daily facts and stats about teeth and bites, plus real challenges to put them to work.
Which muscle is one of the main chewing muscles that closes the jaw?
The masseter runs from the cheekbone to the lower jaw and powers biting and chewing.

One ranked attempt per day. Practice as much as you like.
Join one, log your days or post your proof. Finishing earns XP and the Finisher badge.
Brush twice and floss once every day for two weeks. Check in once a day.
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Look at a pet's or a picture of an animal's teeth and write what its teeth suggest it eats. Post a short write-up.
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Learn one fact about a different animal's teeth or jaws each day for a week. Check in with the animal.
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Draw a simple diagram of human incisors, canines, premolars and molars and label each. Post a photo link.
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Live counts from BiteChallenge.com. All arena stats →
Earned on any arena, shown on your profile everywhere.
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Play today's quiz round, post your score, and start a streak.
XP, levels, streaks and badges. Save your progress with an email and it follows you to every arena on the iChallenge network.
Everyone on this arena gets the same five questions each day, from easy to hard. You get one ranked attempt; practice rounds are unlimited.
100 points per correct answer, up to 50 more for answering quickly, a combo multiplier for answers in a row, and 150 bonus points for a perfect round.
Yes. Playing, streaks, badges and leaderboards are free. Some challenges carry a sponsor-funded prize; the challenge card shows it when one is funded.