This phenomenon could not be detected through traditional dietary research methods, but by using DNA-based techniques, such interactions were revealed for the first time, leading to important questions about how human activities affect wildlife.

When we humans feel very tired, we often say that we can fall asleep standing up, but this is just a description. In reality, it is impossible for humans to sleep standing up, but there are many animals in nature that have this such a skill that humans do not have, for example, horses can sleep standing up effortlessly.

Sloth monkeys, the world's only poisonous primates