No, maybe twenty.
Usually very light; Below twenty pounds at an average.
Jack Russells are generally similar in size to King Charles Spaniels, but they tend to be slightly taller and more muscular. Jack Russells typically weigh between 13-17 pounds and stand about 10-15 inches tall, while King Charles Spaniels usually weigh around 13-18 pounds and stand about 12-13 inches tall. Overall, the difference in size is minimal, but Jack Russells may be perceived as more robust.
None, Jack Russells are dogs, they have puppies not babies.
because jack russells are good at pest control
yes i have 2 jack russells and both of them have webbed feet.
no they are from England
dobermens
water
mammal
No.
no they are hyperactive
you mean breed right