New research reveals that wild animals that experience trauma are half as likely to survive. Scientists have developed a cumulative adversity index, similar to human childhood trauma scores, to predict negative survival outcomes in yellow-bellied marmots. The study found that experiencing even one adverse event before age 2 significantly reduces an adult marmot's chances of survival.

Source: https://www.livescience.com/animals/wild-animals-that-experience-trauma-are-half-as-likely-to-survive-study-finds