What colors do all pets see?

It's impossible to say that all pets see the same colors because different species have different visual systems. Here's a general breakdown of how some common pets see the world:

* Dogs: Dogs are mostly red-green colorblind. This means they see shades of blue, yellow, and gray, but struggle to distinguish between reds and greens. They can also see ultraviolet light, which humans cannot.

* Cats: Similar to dogs, cats are also red-green colorblind. They see shades of blue and green, as well as some yellows and grays. They are also sensitive to ultraviolet light.

* Birds: Many bird species have excellent color vision. Some can see more colors than humans, including ultraviolet light.

* Fish: Fish species vary in their color vision, but generally see a wider range of colors than humans, including ultraviolet and infrared light.

* Reptiles: Like birds, reptiles have excellent color vision. Some species, like chameleons, can even change their own colors.

It's important to remember that even within a species, there can be individual variations in color vision. Factors like age, health, and breed can also influence how an animal sees the world.