As humans, sexually-transmitted microbes worry us. They can cause some pretty nasty diseases, and we’ve learned to take precautions. But, some creatures actually welcome the tiny hitchhikers that can jump ship during mating. For dung beetles, the act of procreation can sometimes come with an extra benefit: Nematode worms.

Just as there are countless species of bacteria living on and in us that help our bodies out, not every sexually-transmitted creature is out to cause harm. For the dung