Are animals that are awake at night can see things only in black and white?

No, animals that are nocturnal and active at night do not see only in black and white. While many nocturnal animals have adaptations that enhance their ability to see in low light, such as a higher ratio of rod cells in their retinas, they can still perceive some colors. However, their color vision is generally limited compared to diurnal animals, and they may see fewer colors or different shades.