DNA barcoding has been used to identify the ingredients of traditional medicines, including quack medicines. In one study, researchers found that 25% of traditional medicines contained undeclared ingredients, including heavy metals and toxic chemicals. This information can help consumers make informed decisions about the medicines they take.

Insect Immigrants

DNA barcoding has also been used to track the movement of insect immigrants. For example, researchers have found that the Asian long-horned beetle, a destructive pest of trees, has been introduced to North America and Europe through the transportation of infested wood. This information can help authorities prevent the spread of invasive species.

What Eats What

DNA barcoding can also be used to identify the predators and prey of different organisms. This information can help ecologists understand the food webs that exist in different ecosystems. For example, researchers have found that the diet of the endangered giant panda consists mainly of bamboo, but it also occasionally eats small mammals and insects. This information can help conservationists develop strategies to protect the giant panda and its habitat.

These are just a few examples of how DNA barcoding is being used to reveal secrets about the natural world. As DNA barcoding technology continues to develop, we can expect to learn even more about the diversity and complexity of life on Earth.