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Cats and dogs have a 'sixth sense' - and it's UV vision (but scientists don't know how they use it) | Daily Mail Online
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What evolutionary advantage is gained by animals that can see wavelengths of light outside the standard (human) visual range? : r/askscience
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Spectacular images of creatures under UV light show animals as you've never seen them before - Irish Mirror Online
![Other #animals can see parts of the #spectrum that #humans can't. For example, a large number of #insects can see #ultraviolet … | Ultra violet, Human, Did you know Other #animals can see parts of the #spectrum that #humans can't. For example, a large number of #insects can see #ultraviolet … | Ultra violet, Human, Did you know](https://i.pinimg.com/originals/91/94/9a/91949a44115589651d00b85a3c2f1220.jpg)