About one in fifty people have some level of color vision deficiency.

五十人中有一个人拥有某种程度的 色觉不足，大多是男性，因为。

There’s a good deal of ongoing research around exactly how our color vision works.

有很多关于我们色觉的研究正在进行。

But we now know that color vision developed around 30 million years ago so that's not it.

但是我们现在知道色觉是在 3000 万年前发展起来的，所以情况不是这样的。

The reality is actually closer to how humans experience color-blindness, which is more accurately called " color vision deficiency" .

然而，现实更接近于人类的色盲体验，更准确地说法是“色觉辨认障碍”。

Humans may have the advantage in color vision, but dogs definitely have us beat in the realm of night vision.

人类在色觉方面可能有优势，但狗的夜视能力肯定比人类强。

Why do we have color vision?

为什么我们有色觉？

Cones are used in color vision, but they only really work if there’s a good amount of light.

视锥细胞用于色觉，但只有在光线充足的情况下它们才真正起作用。

Some researchers even think that we evolved our awesome color vision, in part, to help us successfully spot snakes.

一些研究人员甚至认为，我们进化出令人敬畏的色觉，部分原因是为了帮助我们成功发现蛇。

Interestingly enough, these color categories also match up with the six colors central to what's known as the opponent-process theory of color vision.

有趣的是，这些颜色类别也与六种颜色相匹配，这六种颜色是所谓的颜色视觉的补偿反应理论的核心。

Of mammals only humans and some primates enjoy color vision. The red flag is black to the bull. Horses live in a monochrome world .

在哺乳类动物中，只有人和一些灵长目动物能够分辨颜色。红旗在公牛看来是黑色的，马则生活在一个单色的世界里。

So, revisions of the Kay and Berlin theory have floated the idea of just six primary colors, in line with the biology of color vision.

因此，对凯和波林理论的修正，提出了只有六种原色的想法，这与颜色视觉生物学相一致。

It's vision system allows it to track multiple targets simultaneously, and its basic color vision mode is supplemented with infra-red and night vision modes.

它的视觉系统允许它同时跟踪多个目标，其基本的彩色视觉模式辅以红外线和夜视模式。

This means you can set up a battleground full of shadowy places to hide and force the Terminator to rely on its normal color vision.

这意味着您可以设置一个充满阴影的战场来隐藏并迫使终结者依靠其正常的色觉。

Well, I think everybody would agree we have color vision as an adaptation because of the advantages it gives us for seeing and making visual distinctions.

嗯，我想每个人都会同意我们拥有色觉作为一种适应，因为它为我们提供了观察和进行视觉区分的优势。

Take birds who have great vision—the pigeon has once been described as “two eyes with wings”—with “double cones” which enable them to see ultraviolet wavelengths and give them sharp color vision.

以视力很好的鸟类为例——鸽子曾经被描述为“长着翅膀的两只眼睛”——它们有“双锥体”，这使它们能够看到紫外线波长，并赋予它们敏锐的色觉。

It's also easy for us to sort of look at this from the standpoint of human color vision which is actually pretty good, versus say, birds, which are the most common predators of insects, including beetles.

我们也很容易从人类色觉的角度来看待这个问题，这实际上非常好，比方说，鸟类是昆虫最常见的捕食者，包括甲虫。

And again just like with the whiskers question, dogs don't rely on vision as much as we do so that could be another part of the story, that having detailed color vision is just not as important for them.

就像胡须问题一样，狗不像我们那样依赖视觉，所以这可能是故事的另一部分，拥有详细的色觉对他们来说并不那么重要。