New research sheds light on how chimpanzees self-medicate wounds with plants and provide aid to other chimps. A new report published Tuesday in the journal Frontiers in Ecology and Evolution provides fresh clues on the origin of human medical care and how primates -- such as chimps,

Wild chimpanzees have been observed self-medicating their wounds with plants, providing medical aid to other chimps and even removing others from snares left by human hunters, new research suggests.