Shorebirds outfox predators by migrating farther north
Friday, January 15, 2010 - 19:35
in Earth & Climate
Why some sandpipers and plovers fly thousands of miles farther into the Arctic had puzzled scientists. Turns out at higher latitudes, their eggs aren't as likely to get eaten by predators. Every year, shorebirds flap thousands and thousands of miles to the northern hemisphere, then back to the south. It's an exhausting round trip. Yet some sandpipers and plovers head deeper into the...