Final answer:
The Rex rabbit is a breed that displays upright fur when stroked from tail to shoulder, which is a result of a genetic mutation. Rabbit fur is important for camouflage, temperature control, and sensory purposes, and has evolved through processes like natural selection.
Step-by-step explanation:
One breed of rabbit on which you will find upright fur when the fur is stroked from tail to shoulder is the Rex rabbit. The Rex is known for its plush, velvety fur which stands upright rather than lying flat against the body. This is a distinctive characteristic of the breed and is a result of a genetic mutation.
The fur of rabbits is an important aspect of their evolutionary history, assisting in camouflaging, temperature regulation, and sensory perception. The Himalayan rabbit is another example, where the coloration is influenced by temperature-sensitive genes, leading to darker fur on cooler parts of the body.
Rabbit coats have adapted over time due to environmental factors, such as the white fur found in Arctic rabbits which helps them to blend into snowy environments and avoid predators like foxes, illustrating the concept of natural selection.