Inherit stress from parents: Snowshoe hares provide new research (VIDEO).

Can You Inherit Stress From Your Parents? Look What Happened to These Animals.

Can You Inherit Stress From Your Parents? Look What Happened to These Animals.

The state of the universe.
May 7 2015 2:47 PM

Can You Inherit Stress From Your Parents?

Look what happened to generations of the snowshoe hare.

stress
Screenshot via Slate.

A recent study from the University of Pennsylvania used 60 years of data on the snowshoe hare to identify stress as a major factor in the wildly varying numbers from generation to generation. Freaked-out hare females with high levels of stress hormones give birth to smaller litters, with smaller babies who also possess high stress hormone levels, and subsequent generations then decline in numbers.

In humans, we know stress is a factor in heart disease, diabetes, and obesity. And an increasing body of work suggests we may be able to inherit stress by means other than our DNA.

Paca Thomas is a regular video contributor to Slate.