Here's why:
* Breed Standard: The Jack Russell breed standard specifically mentions their ability to jump high and far.
* Built for Agility: They have a muscular and compact build, which gives them incredible power and agility. Their strong legs and short, powerful bodies make them ideal for leaping.
* High Energy: Jack Russells are notoriously energetic dogs, and their boundless energy often translates into jumping.
* Natural Instinct: They are bred for hunting, and this often involves jumping over obstacles and chasing prey.
However, it's important to remember that:
* Individual Differences: Not all Jack Russells are equal when it comes to jumping. Some may be more athletic than others.
* Training is Key: While they have the natural ability, training can help them develop their jumping skills and control.
Overall, Jack Russells are known for their impressive jumping abilities, and they can make excellent agility dogs if trained properly.