>Was it a Jack Russell? We had a Jack that we loved. It was a great family dog until one day a stray cat jumped into the yard and it killed it out of instinct. They are actually bred to hunt rats. Since that day he thought our family cat (who we had for 9 years) was dinner. I had to find a home for him but luckily I found a family who already had a Jack Russell (so they knew their disposition and habits) who was looking for a companion for her.

My niece (and family) has a Jack Russell, along with 3 cats, an iguana, 2 ferrets and a snake. One of the cats and the JR love to play. The cat lays down on the floor and the dog puts its mouth over the cat's belly and rolls her around. It's a bizarre thing to see. He's never hurt her.

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>>>- several baby monkeys were born and raised in a controlled lab environment
>>>- although their mothers were born wild and may have seen snakes, the lab-born baby monkeys were never exposed to snakes
>>>- the baby monkeys were temporarily separated from their mothers (so they couldn't get behaviour cues from their mothers)
>>>- while each baby monkey was in its cage, a large (but harmless) snake was released into the same room
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>>>In every case, the baby monkeys showed extreme fear of the snake. Even though they had never seen a snake before in their lives and had no way to know that they "should" be afraid of snakes.
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>>We had an accidental experiment of the sort. A dog was brought in as a puppy, a day or two old, and has never left the yard. At age of three, it caught a rat like a real pro, knowing exactly how to jump on it and how to break its neck with the first bite. How did it know what to do?