Are certain dog behaviors, like fear or aggression, genetic?

Question

What are two examples of behavioural characteristics in a dog with high heritability?

Dr. Melanie, BVSc MS · Accepted Answer

It's important to keep in mind that behavior is both a produce of nature and nurture. Both genes and the environment affect behavior. In addition, the heritability for most behavioral traits are low. Environment factors produce so much variability that the genetic component is minimal. That being said, fearfulness and aggression are two behavioral traits that has been shown to have high heritability.

Are certain dog behaviors, like fear or aggression, genetic?

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