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  • Maple trees can tell the difference between deer eating them and being damaged by storms. (Willow, Wikimedia Commons)
    Trees Know When Something's Eating Them
    Walker Rhea
    German scientists studying young beeches and maples knew plants responded to predation, but they wanted to know if plants could tell the difference between a deer chewing their leaves verus being damaged by other factors like storms, or being trampled upon.
  • (Wikimedia Commons)
    Mouthwash and Exercise
    Walker Rhea
    It might not be a great idea to use mouthwash right after working out, at least if you want to experience the blood pressure-reducing effects seen after exercise. Mouth bacteria play an important role in reducing blood pressure after we exercise, and using antibacterial mouthwash can get rid of it.