Jack Russell Traits

Small Size

Very High Energy Level

Very Curious

Strong Willed

Need Lots of Attention

Require Firm Rules & Discipline

Are Easily Trained / Very Smart

Shed Like Crazy

Run Fast and Jump High

*****

They are Bred to Hunt Small Animals like Rabbits, Foxes, Badgers so in a domestic setting  they will:

Chase Cats (small animal)

Dig Holes (because small animals live & hide  in holes)

Bark (to let you know they are on to something)

Are Fearless and Do Not Give Up Easily

They almost always need to be on a leash or in a securely fenced yard because they can't help but run off if they see anything move!