At the outbreak of the First World War, young women suddenly were seen enthusiastically dancing with, kissing, and even having sex with young men in uniform—men many of them had only just met. This was known as “khaki fever.” But was it a moral panic? https://bit.ly/3qB27vf

Multiple types of virus can infect a host at the same time. Those viruses could potentially share those resources and act cooperatively. But sometimes, in this shared environment, a rare type of virus will emerge—the cheater—that will steal resources without producing any of its own. https://bit.ly/3pvWzRy