Uncategorized
- Health & Medicine
Natural antidepressant has its limits
St. John's wort, a popular ingredient in herbal remedies, may not help people with moderate or severe forms of depression.
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Your article on the importance to an elephant family of having as its leader a matriarch of considerable age reminded me of the postulation that one of the reasons menopause evolved in humans was to allow some women to survive to old age. In preliterate societies, old people were the libraries. Some of the knowledge […]
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Friend or Foe? Old Elephants Know
Older female elephants are far better at telling friends from strangers than are younger matriarchs.
