Think peacocks — male peacocks put an enormous amount of energy into producing large and vividly colored feather arrays intended to attract females, even though it also makes them more visible and hence more vulnerable to predators (the feathers of peahens are relatively dull by contrast, as is the plumage of females in many bird species). (epolitics.com)
To find out, Jessica Yorzinski and colleagues at Duke University in Durham, North Carolina, tracked peahens» eye movements by fitting them with head cams. (newscientist.com)