Answer:
Night vision
Step-by-step explanation:
Nocturnal animals have generally bigger eyes than humans and have mostly a tubular shape. This makes more light enter the retina which makes it possible for animals to see at night. Nocturnal animals do all of their activities at night so they need night vision to survive. With night vision they can hunt for food, run away from predators.
The color of fur helps animals to camouflage themselves this would be of no use to nocturnal animals.
Furry heels and short snouts also would be of no use to nocturnal animals.