Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
Only humans shed emotional tears.
331
When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
25
Touching a teddy bear can make people feel less lonely.
36
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20