Twilight periods spur activity in several species

10/29/2010 | BBC

The morning and evening periods between daylight and absolute darkness, dubbed The Twilight Zone, are the busiest times for several species that use the cover of twilight to feed, mate and generally communicate with their peers. Some birds of prey and bats find twilight the optimum time for hunting, since it offers just enough light to see prey while offering enough darkness to raise the odds of escaping predators.

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