Black herons in the Moremi Game Reserve, Botswana (© Ben Cranke/Getty Images)

【February 25 2013】Black herons use their wings like umbrellas, creating shade underwater just as a lily pad might do. Fish think they're safe ducking underneath, but boy, do they have a surprise coming. Think of the worms and lures you could save if you'd only cast shadows like the black heron. Ornithologists call its trickery "canopy fishing."Explore breathtaking Gallery from the HuluTrip homepage over the past 5 years..