Which mammals have no teeth?
- Life Science, Science Fun Facts
- September 21, 2012
Everyone yawns every day, and that too, quite a few times a day. We do know that boredom, tiredness, drowsiness and seeing others yawn makes us yawn. Still scientists do not know for sure just why nature gave us this funny habit in the first place. What happens during yawning Quite a lot of things
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