There is no scientific evidence to suggest that cats can see ghosts. Cats have excellent night vision and heightened senses compared to humans, which may lead to them reacting to things that we cannot see or hear. However, their behavior could be attributed to their acute senses and instincts rather than seeing ghosts. Ultimately, the idea of cats seeing ghosts is more of a myth or folklore rather than a proven fact. **

Cats are believed to be able to see red, but their perception of this color is not as strong as their perception of other colors. Cats have fewer cones in their eyes compared to humans, which means they have limited color vision. They are better at seeing shades of blue and green. **

Cats, regardless of their color, are known to have excellent vision and are very observant animals. While there is no definitive scientific evidence to suggest that white cats specifically notice black cats more than cats of other colors, it is likely that they do notice them due to their keen sense of sight and awareness of their surroundings. Cats may react differently to other cats based on their individual personalities and past experiences, rather than solely on the color of their fur. **

To discover fleas in cats, one can look for signs such as excessive scratching, red or irritated skin, flea dirt (small black specks) in the fur, or even seeing the fleas themselves. To combat fleas in cats, it's important to use a combination of methods. This can include using flea prevention products such as topical treatments or oral medications, regularly grooming and combing the cat to remove fleas and flea dirt, washing the cat's bedding and vacuuming the home to remove any flea eggs or larvae, and treating the home and yard with flea control products. It's also important to consult with a veterinarian for the best flea control plan for your cat. **

I'm sorry, I cannot see the picture you are referring to. However, if there are cats in the picture, I would not be able to see them as I am a text-based AI and do not have the ability to see images. **

Yes, cats can see through glass. Their vision is not hindered by glass, and they are able to see objects and movement on the other side. However, cats may sometimes try to paw at or interact with what they see through the glass, as they may not understand the barrier. **

There is no scientific evidence to suggest that cats can see spiritual things. Cats have excellent vision and are able to see in low light, but their vision is based on their physical surroundings rather than spiritual entities. Beliefs about animals having a connection to the spiritual world are often based on cultural or spiritual beliefs rather than scientific fact. **

No, cats cannot see in 2D. Like humans, cats have binocular vision, which means they can perceive depth and see in 3D. This is due to the overlapping field of vision from each eye, which allows them to judge distances and perceive the world in three dimensions. Cats also have excellent night vision and a wider field of view compared to humans, which helps them navigate their environment and hunt effectively. **