A look at the Cornell Lab of Ornithology’s Merlin Bird ID app launched in 2014 that can identify 6,000+ bird species on six continents by a picture or by song (Roman Feeser/CBS News)

Roman Feeser / CBS News:
A look at the Cornell Lab of Ornithology’s Merlin Bird ID app launched in 2014 that can identify 6,000+ bird species on six continents by a picture or by song  —  Scientific evidence suggests dinosaurs met their extinction through asteroid impact.  Today, if a species goes extinct, chances we as humans had something to do with it.