A diverse collection of links covering recent studies, news stories, and interesting facts, ranging from scientific research to policy debates to unusual historical events. Longer summary

A link roundup post covering various topics from scientific studies to current events. The post includes discussions about studies on bottled water bans, birth month effects on health, probiotics and social anxiety, Mexican drug cartels, intelligence studies, and climate change. It also covers interesting stories like Pakistan's transgender tax collectors, a 1910s plan to introduce hippo ranching in America, and various policy discussions around gun violence, university regulations, and economic studies. The post maintains a light tone while discussing serious topics, often adding humorous asides or interesting historical facts. Shorter summary