Picture an octopus that could be deadly to humans. You’re probably thinking of a large creature, and not one that is the size of your palm. But indeed, that’s the blue-ringed octopus, one of several ...

A less explored alternative is social signaling. Iridescent colors are particularly useful in this context because they are brightest from certain directions and body orientation could be employed to ...

The Miami tiger beetle — a diminutive, iridescent native of Florida — was first discovered and described in the 1930s. But after its discovery, it wasn't seen again for six decades, when it was found ...