Variation in response styles in the hypothalamic-pituitary-adrenal HPA axis are known to be predictors of short- and long-term health outcomes. The nature of HPA responses to stressors changes with developmental stage, and some components of the stress response exhibit long-term individual consistency i. Here we evaluated the response of marmoset monkeys Callithrix geoffroyi to a standardized social stressor social separation and exposure to a novel environment at three different stages of development: juvenile, subadult, and young adult. Juvenile marmosets exhibited the most dramatic stress response, had higher AUCs, and tended to show poorer regulation. Marmoset co-twins did not exhibit similar patterns of stress reactivity.
In the video above, watch the official trailer for the film Twinsters. But the red carpet walk, the screening, and the celebrities would not be the most memorable part of her day. Futerman learned the extraordinary news in the most ordinary way: by social media. She tapped the image—funny, they shared a birthdate—and clicked around a bit more. And I accepted her friend request because, why not?