I'm just wondering... How would they test that? It would be tough even if the dog could talk.
Scientist: So, Dog, what colour is this.
Dog: Creamy yellow
Scientist: Nope, it's red!
Dog: How do you know that we are not seeing the same colour, but know it by different names?
Scientist: see image

That's sad. What colours are we missing out on then?

***** , I think you just went full retard

I think maybe you did.

*sigh* Alright I'll explain:
If we were missing out on a color, we wouldn't be able to visualize/comprehend that color, let alone name it

He's talking about how other animals can see way more colors than we can.

While other animals could possibly see more colors than us (emphasis on could), those colors wouldn't even be colors as colors are specifically the light which is within the visible light spectrum. An animal who could see extra colors would only be looking at ultraviolet/infrared waves

I'm sure the dog thinks it can see all the colours too.

What am I looking for on that link?

Cool.

What was saying, is that by literal definition of 'color' humans see all color. "Color" is the light which human eyes can pick up. Any other specific frequency beyond that cannot be comprehended by humans and thus wont have a name- not that it needs one, because we're unable to encounter it

Side note: we can't say the mantis shrimp uses it's advances sight to see past our vis. spectrum, it could orientate its vision to better see our three colors (which would make sense as it would need this to be able to find prey and dispatch it before it got away).

As I just said, it CANNOT see "extra" colors, because color itself is only red, blue and green (and all that's in between). The mantis shrimp is not seeing extra color by human standards, it can only see something outside of our visible range and thus is simply able to perceive ultraviolet and/or infrared. While his would be a color to the shrimp, ultraviolet and infrared are invisible to us and thus are not colors.

You're a boring person.

And you are a boring verb, good sir

Wait, so how do dogs see black people?

They don't, and because of this they get mad and attack them because their color is not understandable to them

I'm pretty sure that humans can see all colours of light spectrum.

Not all of them, what we call the primary colors are only three of the 15 or 16 total colors we can't understand or see. The reason you can't figure out new colors is because your brain can't comprehend it. This goes for everyone.

...but if we can't understand or see them, I don't think it classifies as color, just a frequency of light we can't understand

It does, because it's still visible light. Just not to us. Which is all color really is, visible light.

I know I was wrong when I looked it up afterwards.

No prob. Just trying to help the human race realize we're not the master race in all degrees of everything ever.

Humans see green, blue and red. Mantis Shrimps can see a buttload of colors tho

In words, dogs see about four-to-six colors.

I think that's only two... cause humans can see three distinct colors