AI companions like Replika are designed to engage in intimate exchanges, but people use general-purpose chatbots for sex talk too, despite their stricter content moderation policies. Now new research shows that not all chatbots are equally willing to talk dirty. But other AI chatbots can be enticed too. —Rhiannon WilliamsCalorie restriction can help animals live longer. And some believe such diets might even help you live longer—a finding supported by new research out this week.