Ancient texts have long documented various methods animals use to heal themselves: bears eat calamus leaves to treat stomach ailments; turtles consume mint to counteract snake venom; wild boars eat shepherd's purse to neutralize arrow poison; and hares nibble on the leaves of the horse tongue plant to alleviate diarrhea. In spring, a type of bear in North America awakens from hibernation and seeks out a plant that causes mild diarrhea to quickly recover from the fatigue of long winter nights. Interestingly, when young badgers have skin ailments, their mothers take them to wash in hot springs to promote healing. Many animals exhibit self-healing behaviors driven by their survival instincts. Since humans evolved from animals, early humans retained this instinct and learned to apply various natural remedies by observing animal self-treatment.
In Uganda's Dakhabara Forest, a group of chimpanzees sometimes eats the leaves of a Rubiaceae plant, which local people also use to treat stomach issues. Zoologists have discovered that chimpanzees in the African tropical rainforest also engage in self-medication. When they experience loss of appetite or constipation, they chew the leaves and branches of a bitter tree, later spitting out the residue. The bitter juice from this plant is an effective remedy for gastrointestinal discomfort. In Tanzania's Gombe National Park, chimpanzees occasionally consume the tender leaves of a sunflower family plant. Pharmacologists have found that this plant contains a special medicinal component that can treat diseases caused by parasites and bacteria.
A group of howler monkeys living along the banks of the Amazon River in South America display a fascinating behavior: when the number of male howler monkeys declines, leading to an imbalance in the gender ratio, female howler monkeys will eat a specific grass. This results in a higher proportion of male offspring. Scientists have examined this grass and discovered that it contains certain medicinal components that alter the acidity of the female monkeys' vaginas, potentially influencing the sex of their offspring.
An English ecologist observed in the wild that pregnant female elephants consume the leaves of a plant known as purple root. After eating these leaves, the elephants give birth to lively and healthy calves within a few days. These leaves contain components that induce labor.
While animal self-healing behaviors are instinctual, humans have drawn significant inspiration from these actions, evolving primitive medical practices into modern medicine, which marks a remarkable advancement for humanity!